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    The best science books coming your way in 2022

    By Simon Ings
    If we can’t beat water, perhaps we should learn to go with the flowPete Saloutos/Getty Images
    Explore and protect
    ACROSS the globe, water went wild in 2021. Floods hit everywhere from Afghanistan to New Zealand, and the UK was affected by flash floods in the summer.
    So, as we begin 2022, we should take heed of Erica Gies’s forthcoming book Water Always Wins: Going with the flow to thrive in the age of droughts, floods and climate change. She argues that, as our fields and cities sprawl, it is high time we learned to flow with water’s natural rhythms.
    Chris Armstrong’s A Blue New Deal: Why we need a new politics for the ocean also calls for action. His priorities are the many challenges faced by those whose lives rely on the oceans. From the fate of nations being submerged by sea level rise to the exploitation of people working in fishing, plus the rights of marine animals to a future where they aren’t at risk of extinction, he points out that there is a lot to do.Advertisement
    Along with the growing urgency around climate change, there is a renewed interest in the way we tell the story of life on Earth. In The Sloth Lemur’s Song: Madagascar from the deep past to the uncertain present, environmental researcher Alison Richard traces the history of Earth’s fourth-biggest island, from its origins as a landlocked region of Gondwana to its emergence as an island home to huge, flightless birds and giant tortoises, and on to the modern-day developments that now threaten its biodiversity.
    Palaeobiologist Thomas Halliday embraces a yet more epic timescale in Otherlands: A world in the making, touring the many living worlds that preceded ours, from the mammoth steppe in glaciated Alaska to the lush rainforests of Eocene Antarctica. If you have ever wondered what sound a pterosaur’s wings made in flight, this is the book for you.
    Given that nearly all of the species that have lived on Earth are extinct, it might be an idea to think about what we want to preserve from our current biosphere. In Tickets for the Ark: From wasps to whales – how do we choose what to save?, ecologist Rebecca Nesbit wonders how we might decide the fate of Earth’s estimated 8.7 million species, including ourselves. Are native species more valuable than newcomers? Should some animals be culled to protect others? And is it really our place to decide?
    Feathered friends
    As a species, we tend not to appreciate what we have lost until it is gone – or nearly gone. There are currently around 3 billion fewer birds in our skies than there were in 1970. And, perhaps not coincidentally, 2022 is a bumper year for books about birds.
    Faced with a quite catastrophic decline in bird populations, some writers have focused on what birds mean to our lives. In Birds and Us: A 12,000 year history, from cave art to conservation, ornithologist Tim Birkhead laces his own remarkable travels with the story of humanity’s long fascination with birds. We have worshipped them as gods, worn their feathers and even attempted to emulate their method of flight.
    Even without these cultural efforts, it seems that we share many of our behavioural traits with birds: our longevity, intelligence, monogamous partnerships, child-rearing habits, learning and language all have an avian equivalent, says behavioural ecologist Antone Martinho-Truswell. In The Parrot in the Mirror: How evolving to be like birds made us human, he shows how, from wildly different beginnings, the evolutionary stories of humans and birds have pushed both towards many of the same solutions. Sometimes we could do worse than to think of humans as featherless birds, he argues.
    “Birds not only have a keen sense of smell, they tweak the scents of the oils they use when preening”
    Might this kind of thinking inspire us to better orchestrate our rescue and preservation efforts? Patrick Galbraith’s In Search of One Last Song: Our disappearing birds and the people trying to save them crosses Britain on a journey that may well be his last chance to see some of our vanishing birds. On the way, he meets the people – reed cutters and coppicers, gamekeepers and conservationists – whose efforts sustain vital habitats for some of our rarest birds, but who often fall into misunderstanding and conflict with each other.
    While some focus on saving birds, other books offer a chance to understand them better. Douglas J. Futuyma’s How Birds Evolve: What science reveals about their origin, lives, and diversity traces avian species through deep time to explain how they developed such a rich variety of parenting styles, mating displays and cooperative behaviours.
    Evolutionary biologist Danielle J. Whittaker’s The Secret Perfume of Birds: Uncovering the science of avian scent adds a new feather to their cap with the news that birds not only have a keen sense of smell, but they tweak the scents of the oils they use when preening to attract mates and deter competitors. From tangerine-scented auklets to mossy-smelling juncos, birds are more fragrant than you might think.
    Joys of the cosmos
    Setting the wonders of Earth to one side, let’s examine the mysteries of space. In Black Holes: The key to understanding everything, physicists Brian Cox and Jeff Foreshaw use black holes, the most enigmatic objects in the universe, to explain some very profound physics. What is information? How could gravity and quantum theory one day be unified? And what actually is empty space?
    If that isn’t mind-bending enough, try physicist Nicole Yunger Halpern’s book Quantum Steampunk: The physics of yesterday’s tomorrow. In it, she reimagines 19th-century thermodynamics through a modern, quantum lens, playing with the aesthetics of the 1800s through trains, dirigibles and horseless carriages. It is a physics book, but one that is as likely to attract readers of science fiction as those of popular science.
    If you prefer a more straightforward approach, however, pick up physicist, writer and presenter Jim Al-Khalili’s The Joy of Science. It is a brief guide to leading a more rational existence. A little book of calm that is very welcome in these strange times.
    Fresh thinking
    Perhaps in response to these strange times, this year features several books that look at old notions in an entirely new way. In Am I Normal?: The 200-year search for normal people (and why they don’t exist), historian Sarah Chaney tells the surprisingly recent history of normal people.
    Before the 1830s, says Chaney, the term was hardly ever used to describe human behaviour. But with the advent of IQ tests, sex studies, censuses and data visualisations, we became ever more conscious of, and anxious about, human diversity. Can we ever learn to live with ourselves?
    Learning from the natural world might help in this regard. Lucy Cooke’s Bitch: A revolutionary guide to sex, evolution and the female animal clears away our outdated expectations of female bodies, brains, biology and behaviour and challenges our ideas about sexual identity and sexuality in humans and other animals.
    One aspect of life that seems difficult to argue with is the ageing process. But in Jellyfish Age Backwards: Nature’s secrets to longevity, Nicklas Brendborg asks not just why we grow old and die, but what we can do about it. What can we learn from the Greenland shark that was 286 years old when the Titanic sank and is still going strong; from the many living things that have never evolved to die, and succumb only through unfortunate circumstances; or from one species of jellyfish that can revert back to its polyp stage when threatened and, remarkably, “age again”?
    A related question is how bodies, communities and systems regenerate. This is a pressing issue in regenerative medicine, in developmental biology and in neuroscience. In What Is Regeneration?, philosophers of science Jane Maienschein and Kate MacCord point out that this rapidly growing field of study also promises to transform our ability to understand and repair the damage to ecosystems brought on by climate change.
    In an acid test of our willingness to see clearly and embrace reason, there is Endless Forms: The secret world of wasps, behavioural ecologist Seirian Sumner’s bid to make us love an animal that is older, cleverer and more diverse than its cuddly cousin the bee. Learning that nearly every ecological niche on land is inhabited by a wasp, and that there are wasps that live inside other wasps, may make you fall in love with the things. But then again…
    Observation points
    Another component of great science is, of course, observation – a skill we should all nurture if we want to appreciate our brief time on the planet.
    Rolf Sachsse, a curator based in Bonn, Germany, has gathered together the very best of the remarkable work of English botanist and photographer Anna Atkins (1799-1871) in Anna Atkins: Blue prints. It is a sumptuous celebration of the sort of close observation that contributes so much to both science and art. Atkins used the then recently invented “cyanotype” process to photograph algae and ferns, thereby creating the first photo book in history.
    Barriers to good observation are more often social than practical. History isn’t short of remarkable female astronomers, but before the 1960s, women invariably needed the right relative or the right husband to champion and support their work. The Sky Is for Everyone: Women astronomers in their own words is a testament to the period that all changed. Edited by astronomers Virginia Trimble and David Weintraub, it is an inspiring anthology of writings by trailblazing female astronomers from 1960 to today.
    And finally: close observation, fresh thinking and a concern for the environment all come together in Dust: A history and a future of environmental disaster by Jay Owens – for my money, the most enticing of the books we know are due in 2022.
    “What can we learn from the shark that was 286 years old when the Titanic sank and is still going strong?”
    Owens explores dust as a method for seeing the world anew, from space dust to sandstorms, from the domestic to the digital and from efforts at industrialisation to the latest speculative technologies for cooling the planet. Though dust may often be the harbinger of environmental disaster, Owens, like many of the writers here, still makes room to draw out stories of hope, of salvage and of repair.

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    The best sci-fi TV shows and movies to look forward to in 2022

    By Swapna Krishna
    James Dimmock/CBS
    The best films and TV
    Towards the end of 2021, a glut of movies and shows that had been delayed by covid-19 finally hit the screens. Next year, that trend continues with a plethora of sci-fi offerings.
    Paramount Plus (which is due to launch in the UK in 2022) has a double treat for fans of the Star Trek franchise. Patrick Stewart stars in a new series of Star Trek: Picard, which returns in early 2022. Later in the year, the first season of Star Trek: Strange New Worlds will bring back fan favourites such as Spock, Uhura and Number One.
    Over in the Star Wars universe, Obi-Wan Kenobi starring Ewan McGregor and Hayden Christensen will premiere on Disney+. The streaming service will also bring back Diego Luna as Cassian Andor from Rogue One in Andor.Advertisement
    Back on Paramount Plus, a new show, Halo, based on the hit video game series, will also be released in early 2022. Set in the 26th century, it will focus on a war between humans and aliens, with Pablo Schreiber set to play the legendary Master Chief.
    From Westworld creators Jonathan Nolan and Lisa Joy, comes a new high-concept series for Amazon Prime Video called The Peripheral, based on a book by William Gibson. It focuses on a detective (played by Chloë Grace Moretz) who believes that she witnessed a murder in cyberspace.
    On the big screen, the threats are more tangible. February sees the release of Moonfall, in which Halle Berry stars as a NASA executive and former astronaut who must take action when the moon breaks its orbit and is set to collide with Earth.
    Space thriller 65 is set for release in April. Few details have been released, except that the main character, played by Adam Driver, arrives on another planet to discover he isn’t alone.
    On a lighter note, Disney Pixar’s Lightyear comes to cinemas in June. Set in the Toy Story universe, it traces the origins of Buzz Lightyear — the “real” astronaut that was immortalised as a children’s toy in the cartoons.
    It is also a big year for long-awaited sequels. Avatar 2 finally arrives at the end of the year, more than 10 years after James Cameron introduced us to the world of Pandora. And Jurassic World: Dominion will roar onto big screens in June for one last adventure starring Chris Pratt and Bryce Dallas Howard.
    Whatever else this year brings, we certainly won’t be short of entertainment.

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    The mummy of Egyptian pharaoh Amenhotep I has been digitally unwrapped

    Amenhotep I ruled Egypt from around 1525 to 1504 BC and his pristine mummy has never been unwrapped, but CT scans have now allowed us to peer inside

    Humans

    28 December 2021

    By Alex Wilkins
    Face mask of the never-before unwrapped mummy of pharaoh Amenhotep IS. Saleem and Z. Hawass
    One of the last remaining unwrapped royal Egyptian mummies has been scanned in detail for the first time.
    Amenhotep I, who ruled Egypt from around 1525 to 1504 BC in an era known as the New Kingdom, was found in 1881 by a French Egyptologist. But the king’s mummy was left untouched due to a highly preserved wrapping and ornate face mask. It has remained sealed in its sarcophagus ever since.
    Now, Sahar Saleem and Zahi Hawass at the University of Cairo in Egypt have “digitally unwrapped” Amenhotep I’s mummy with computed tomography (CT), using hundreds of high resolution X-ray slices to map out the ancient king’s skeleton and soft tissue.Advertisement
    “Royal mummies of the New Kingdom were the most well-preserved ancient bodies ever found, so these mummies are considered a time capsule,” says Saleem.
    “They can tell us about what the ancient kings and queens looked like, their health, ancient diseases, mummification techniques and manufacturing methods of funerary objects.”
    Amenhotep I’s mummy has been examined using simple X-ray scans in the past, but the detailed CT scan reveals several new facts: his bone structure indicates that he was 35 years old and 168.5 centimetres tall when he died.
    Left: the pharaoh’s skull. Right: the pharaoh’s mummy, showing his skull and skeleton within the bandagesS. Saleem and Z. Nuwass
    The study also seems to answer a long-standing mystery: previous scans had revealed that Amenhotep I had been embalmed by Egyptian priests for a second time 300 years after he was first entombed, after graverobbers apparently plundered his coffin. Saleem had theorised that the priests used this occasion to pilfer precious jewels placed on the body and in the bandages for themselves before re-embalming him.
    But the plentiful jewellery revealed in the scan  reveals that the priests “lovingly” re-embalmed Amenhotep I, according to Saleem. It was because the priests’ handiwork was so impressive and the mummy’s appearance was so pristine more than 3000 years later that 19th century archaeologists were convinced to leave him permanently unwrapped.
    Journal reference: Frontiers in Medicine, DOI: 10.3389/fmed.2021.778498

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    Bronze Age migration may have brought Celtic languages to Britain

    Analysis of ancient DNA reveals a mass migration of people from what is now France to England and Wales between 1000 and 875 BC

    Humans

    22 December 2021

    By Carissa Wong
    Illustration of a Celtic hill fort in the Iron AgeHeritage Image Partnership Ltd /Alamy
    The largest analysis of ancient DNA to date has revealed a mass migration of people from what is now France into England and Wales during the late Bronze Age, which may have spread Celtic languages to Britain.
    Two large migrations of people into Britain were previously known, the first taking place around 6000 years ago. The ancestry of these people came mostly from a group known to archaeogeneticists as Early European Farmers, with around 20 per cent from another group called Western European Hunter-Gatherers. This migration led to the replacement of most of the existing local hunter-gatherer ancestry.
    Around 4500 years ago, at the start of the Bronze Age, there was a second migration that consisted of descendents of livestock farmers from the Pontic-Caspian steppe – grassland that spans from present-day Bulgaria to Kazakhstan. Ancestry from this group eventually formed at least 90 per cent of the genetic make-up in Scotland, England and Wales.Advertisement
    People living in England and Wales today have more ancestry from Early European Farmers than people in the early Bronze Age did, suggesting a third migration from Europe may have occurred more recently.
    Ian Armit at the University of York in the UK and his colleagues sequenced the genomes of nearly 800 individuals from the Bronze Age to the Iron Age whose remains were found at archaeological sites in Britain and in western and central Europe. They looked at the proportion of Early European Farmer ancestry in these ancient people over time.

    The team found evidence of a third mass migration into Britain from France that took place between 1000 BC and 875 BC, during which Early European Farmer ancestry increased from around 30 per cent to roughly 36 per cent on average in southern Britain by the late Bronze Age. In the Iron Age, this stabilised at nearly half of the ancestry in populations of England and Wales.
    “We’ve always known this period of the middle and late Bronze Age was a period of tremendous connectivity between Britain and central and western Europe,” says Armit.
    “Prior to this study, we would have thought of the movement in terms of individuals and small groups, traders and [people looking for metal]. But the results show society was far more mobile than we thought – large sectors of society were on the move. Societies were very interconnected across the English Channel in a manner we hadn’t really appreciated before,” he says.
    The findings help shed light on a debate about when Celtic languages were first spoken in Britain. “The most established theory, based on the analysis of ancient object styles, is that Celtic languages came in during the Iron Age with Celtic speakers from continental Europe,” says Armit.
    But the new evidence supports a competing idea, based on linguistic studies, that Celtic languages expanded into Britain earlier, in the middle to late Bronze Age. However, we can’t tell from someone’s DNA what language they spoke, says Armit.
    Journal reference: Nature, DOI: 10.1038/s41586-021-04287-4
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    European wine grapes have their genetic roots in western Asia

    We used to think that European wine grapes were cultivated locally, independently of grape domestication in western Asia, but grape genetics suggests otherwise

    Humans

    21 December 2021

    By Carissa Wong
    Red grapes ready to be harvested in a vineyardalika/Shutterstock
    Grapes used to make common European wines may have originated from grapevines that were first domesticated in the South Caucasus region of western Asia. As these domesticated grapes dispersed westwards during the Greek and Roman times, they interbred with local European wild populations, which helped the wine grapes adapt to different European climates.
    The origins of grapes (Vitis vinifera) that are used in Europe and elsewhere to produce wines such as Merlot, Chardonnay and Pinot Noir have long been debated.
    It has been proposed that European wine grapes arose from the cultivation of wild European populations (V. vinifera subspecies sylvestris), independently of the original domestication of grapes in western Asia around 7000 years ago.Advertisement
    But a genetic analysis carried out by Gabriele Di Gaspero at the Institute of Applied Genomics in Udine, Italy, and his colleagues suggests that European wine grapes actually originated from domesticated grapes (V. vinifera subspecies sativa) that were initially grown for consumption as fresh fruit in western Asia.
    The team sequenced the genomes of 204 wild and cultivated grape varieties – to cover the range of genetic diversity in cultivated grapes – and compared how similar their genetic sequences were to one another.
    This revealed that as western Asian table grapes spread westwards across the Mediterranean and further inland into Europe, they interbred with wild European grape populations that grew nearby.

    “The wild plants grew close to vineyards and interbred – this was unintentional. But the results of the breeding created adaptive traits that were likely selected by humans intentionally,” says Di Gaspero. “By bringing together this genetic evidence and existing historical evidence, the introductions in southern Europe and inland likely occurred in Greek and Roman times, although we don’t know more specific dates.”
    By modelling how the ancestry of the grapes in different regions of Europe related to aspects of the local climate such as temperature and precipitation, the team discovered that European wild grapes probably contributed traits that enabled the ancestral grape vines to adapt to different regions as they moved westwards from Asia.
    The team also found evidence of the effect that domestication had on grape genetics.
    In wild grape varieties, a larger seed makes a larger berry because grape seeds produce a growth hormone called ethylene. But for human consumption, a larger berry-to-seed ratio is desirable. The team found that an enzyme not found in the berries of wild varieties was present in the berries of domesticated varieties. In other plants, the enzyme is known to help berries grow in response to ethylene, which suggests it does the same in grapes.
    Understanding which genes encode favourable traits in grapes can allow us grow better grape crops, says Di Gaspero.
    Journal reference: Nature Communications, DOI: 10.1038/s41467-021-27487-y

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    Higher US welfare benefits seem to protect children's brains

    The size of a child’s hippocampus can be limited by stress, and US state welfare schemes that give families $500 a month or more are linked to a reduction in this association

    Humans

    20 December 2021

    By Jason Arunn Murugesu
    Illustration of the hippocampus in a child’s brainScience Photo Library / Alamy
    Higher payments from US welfare schemes can reduce the impact that living in a low-income household has on the size of a crucial region of a child’s brain.
    David Weissman at Harvard University in Massachusetts, and his colleagues analysed images of the brains of more than 11,000 children aged 9 and 10 in the US, looking specifically at the size of each child’s hippocampus.
    “The hippocampus is a brain region involved in learning and memory,” says Weissman. Its development is believed to be impaired by excess stress, which can be caused by growing up in poverty, he says.Advertisement
    “Prior studies show that kids with small hippocampal volumes are more likely to develop internalising problems [such as anxiety and social withdrawal] and develop depression,” he says.
    The children came from 17 states, and while they aren’t wholly representative of the US population they are “pretty close”, according to Weissman. The data set is slightly skewed towards more urban areas because the imaging can only be done in places that have available neuroimaging equipment and related expertise.
    Weissman and his team looked at whether a state had expanded Medicaid, a federally subsidised healthcare scheme, in 2017. That year, states had to choose whether to begin covering a portion of the services that were previously fully covered by the federal government. Just over 7500 of the children involved lived in states that expanded Medicaid.
    Then the researchers analysed the average amount of welfare benefits people in each state received under various anti-poverty schemes. The higher this total, the more generous they considered the state’s benefits system. “It’s a rough estimate, but it works,” says Weissman.

    Combining this with the brain imagery revealed that children in families that received fewer welfare benefits from their state had a smaller hippocampus than average. This link was stronger in states with a high cost of living.
    The team found there was a 37 per cent reduction in the association between lower family incomes and a smaller hippocampus in states that gave each family receiving welfare payments on average $500 a month or more, compared with those that gave less than $500 a month.
    The link between receiving better welfare payments and a smaller hippocampus was also reduced by 19 per cent in states that had expanded Medicaid compared with those that hadn’t.
    Weissman says the results aren’t surprising, but it is still “shocking” to see how major government policy decisions have an actual effect on the brain.
    “If your goal is to have a fairer society where this doesn’t happen, then you should be pushing for policies that give more cash benefits to poorer families,” he says.
    “I think that this finding is tremendously important,” says Jane Barlow at the University of Oxford. “The research [in this field] now clearly shows social adversity can become biologically embedded during the prenatal period and early years of a child’s life as a result of the way in which they impact the neurological development of the child.”
    Reference: PsyArXiv, DOI: 10.31234/osf.io/8nhej

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    People occupied the Faroe Islands 300 years earlier than we thought

    By Chen Ly
    The Faroe Islandsdataichi – Simon Dubreuil/Getty Images
    People arrived on the Faroe Islands – a North Atlantic archipelago between Iceland, Norway and the British Isles – earlier than we thought, predating the arrival of Norse Vikings by about 300 years.
    The earliest direct evidence of human settlement on the Faroe Islands dates back to the arrival of the Vikings in around AD 800. But charred barley grains and cereal grain pollen on the islands dating back to around AD 500 indirectly hint that farming must have existed on the islands pre-Viking.
    Now, William D’Andrea at … More