Feature Channels: Evolution and Darwin

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23-Oct-2020 8:55 AM EDT
Giant Lizards Learnt to Fly Over Millions of Years
University of Bristol

A new study, ‘150 million years of sustained increase in pterosaur flight efficiency’, published in the journal Nature has shown that pterosaurs – a group of creatures that became Earth’s first flying vertebrates – evolved to improve their flight performance over their 150 million-year existence, before going extinct at the same time as dinosaurs 66 million years ago.

27-Oct-2020 3:15 PM EDT
The Rhythm of Change: What a Drum-Beat Experiment Reveals About Cultural Evolution
Santa Fe Institute

Living organisms aren’t the only things that evolve over time. Cultural practices change, too, and in recent years social scientists have taken a keen interest in understanding this cultural evolution. A new experiment used drum-beats to investigate the role that environment plays on cultural shifts, confirming that different environments do indeed give rise to different cultural patterns.

   
20-Oct-2020 8:55 AM EDT
Building Blocks of Language Evolved 30-40 Million Years Ago
University of Warwick

Language is one of the most powerful tools available to humanity, and determining why and when language evolved is central to understand what it means to be human

Released: 16-Oct-2020 3:45 PM EDT
Monkey study suggests that they, like humans, may have 'self-domesticated'
Princeton University

It's not a coincidence that dogs are cuter than wolves, or that goats at a petting zoo have shorter horns and friendlier demeanors than their wild ancestors.

Released: 16-Oct-2020 12:25 PM EDT
World’s greatest mass extinction triggered switch to warm-bloodedness
University of Bristol

Mammals and birds today are warm-blooded, and this is often taken as the reason for their great success.

Released: 15-Oct-2020 8:55 AM EDT
Warwick researcher to investigate the link between apes and the evolution of human language
University of Warwick

Dr Adriano R. Lameira, from the Department of Psychology at the University of Warwick, has been awarded a prestigious UKRI Future Leader Fellowship, for his project: The ape and the first word: Understanding the origins and evolution of the first linguistic structures in the human clade through comparative research.

8-Oct-2020 12:40 PM EDT
Ancient tiny teeth reveal first mammals lived more like reptiles
University of Bristol

Pioneering analysis of 200 million-year-old teeth belonging to the earliest mammals suggests they functioned like their cold-blooded counterparts - reptiles, leading less active but much longer lives.

Released: 9-Oct-2020 12:10 PM EDT
Oldest monkey fossils outside of Africa found
Penn State University

Three fossils found in a lignite mine in southeastern Yunan Province, China, are about 6.4 million years old, indicate monkeys existed in Asia at the same time as apes, and are probably the ancestors of some of the modern monkeys in the area, according to an international team of researchers.

Released: 6-Oct-2020 3:05 PM EDT
The first human settlers on islands caused extinctions
University of California, Riverside

Though some believe prehistoric humans lived in harmony with nature, a new analysis of fossils shows human arrival in the Bahamas caused some birds to be lost from the islands and other species to be completely wiped out.

Released: 30-Sep-2020 1:50 PM EDT
The ancient Neanderthal hand in severe COVID-19
Okinawa Institute of Science and Technology Graduate University - OIST

Since first appearing in late 2019, the novel virus, SARS-CoV-2, has had a range of impacts on those it infects.

   
23-Sep-2020 9:00 AM EDT
Evolution of Pine Needles Helps Trees Cope with Rainfall Impact
American Institute of Physics (AIP)

If you have been surrounded by the sight and smell of pine trees, you may have taken a closer look at the needles and then wondered how their properties are influenced by rainfall. In Physics of Fluids, researchers are currently probing how well pine needles allay the impact of rain beneath the tree. They explored the impact of raindrops onto fixed, noncircular fibers of the longleaf pine by using high-speed videography to capture the results.

Released: 23-Sep-2020 11:25 AM EDT
Tiny worlds reveal fundamental drivers of abundance, diversity
Santa Fe Institute

Ecology is traditionally a data-poor discipline, but tiny microbial worlds offer the quantity of data needed to solve universal questions about abundance and diversity. New research in Nature Communications reveals the fundamental relationship between the environment and the species present in a microbial community and can be used as a starting point for investigating bigger systems.

Released: 21-Sep-2020 2:25 PM EDT
Male baboons with female friends live longer
Duke University

Close bonds with the opposite sex can have non-romantic benefits. And not just for people, but for our primate cousins, too.

Released: 17-Sep-2020 2:55 PM EDT
A 48,000 years old tooth that belonged to one of the last Neanderthals in Northern Italy
Universita di Bologna

A milk-tooth found in the vicinity of "Riparo del Broion" on the Berici Hills in the Veneto region bears evidence of one of the last Neanderthals in Italy.

Released: 15-Sep-2020 7:05 PM EDT
Tail regeneration in lungfish provides insight into evolution of limb regrowth
University of Chicago Medical Center

A new study published in the Proceedings of the Royal Society B from researchers at the University of Chicago and Universidade Federal do Pará explores regenerative ability in the tails of West African lungfish for the first time, and finds that the process shares many of the same traits as tail regeneration in salamanders. Their results indicate that this trait was likely found in a common ancestor – and provide a new opportunity for better understanding and harnessing the mechanisms of limb regrowth.

Released: 10-Sep-2020 11:55 AM EDT
Over a century later, the mystery of the Alfred Wallace's butterfly is solved
Pensoft Publishers

An over a century-long mystery has been surrounding the Taiwanese butterfly fauna ever since the "father of zoogeography" Alfred Russel Wallace, in collaboration with Frederic Moore, authored a landmark paper in 1866: the first to study the lepidopterans of the island.

Released: 8-Sep-2020 6:30 PM EDT
The oldest Neanderthal DNA of Central-Eastern Europe
Max Planck Institute for Evolutionary Anthropology

Around 100,000 years ago, the climate worsened abruptly and the environment of Central-Eastern Europe shifted from forested to open steppe/taiga habitat, promoting the dispersal of wooly mammoth, wooly rhino and other cold adapted species from the Arctic.

26-Aug-2020 12:00 PM EDT
Mastodons traveled vast distances across North America to adapt to climate change: research
McMaster University

New research from an international team of evolutionary geneticists, bioinformaticians and paleontologists suggests that dramatic environmental changes accompanying the shift or melting of continental glaciers played a key role as American mastodons moved north from their southern ranges.

Released: 27-Aug-2020 11:15 AM EDT
Fossil evidence of ‘hibernation-like’ state in 250-million-year-old Antarctic animal
University of Washington

Scientists report evidence of a hibernation-like state in Lystrosaurus, an animal that lived in Antarctica during the Early Triassic 250 million years ago. The fossils are the oldest evidence of a hibernation-like state in a vertebrate, and indicate that torpor arose in vertebrates even before mammals and dinosaurs evolved.

Released: 25-Aug-2020 11:55 AM EDT
Study reveals two major microbial groups can't breathe
Bigelow Laboratory for Ocean Sciences

A new scientific study has revealed unique life strategies of two major groups of microbes that live below Earth's surface.

Released: 14-Aug-2020 4:05 PM EDT
Traces of Ancient Life Tell Story of Early Diversity in Marine Ecosystems
University of Saskatchewan

If you could dive down to the ocean floor nearly 540 million years ago just past the point where waves begin to break, you would find an explosion of life--scores of worm-like animals and other sea creatures tunneling complex holes and structures in the mud and sand--where before the environment had been mostly barren.

Released: 14-Aug-2020 11:15 AM EDT
To understand the machinery of life, this scientist breaks it on purpose
University of Arizona

"I'm fascinated with life, and that's why I want to break it."

   
23-Jul-2020 10:30 AM EDT
Brain Cell Types Identified That May Push Males to Fight and Have Sex
NYU Langone Health

Two groups of nerve cells may serve as “on-off switches” for male mating and aggression, suggests a new study in rodents.

Released: 23-Jul-2020 5:10 PM EDT
Mammal cells could struggle to fight space germs
University of Exeter

The immune systems of mammals - including humans - might struggle to detect and respond to germs from other planets, new research suggests.

Released: 23-Jul-2020 4:40 PM EDT
Neandertals may have had a lower threshold for pain
Max Planck Institute for Evolutionary Anthropology

As several Neandertal genomes of high quality are now available researchers can identify genetic changes that were present in many or all Neandertals, investigate their physiological effects and look into their consequences when they occur in people today.

   
Released: 21-Jul-2020 8:10 PM EDT
Mutant zebrafish reveals a turning point in spine's evolution
Duke University

A chance mutation that led to spinal defects in a zebrafish has opened a little window into our own fishy past.

Released: 14-Jul-2020 3:45 PM EDT
Green is more than skin-deep for hundreds of frog species
Duke University

Frogs and toads are green for a very good reason - it makes them harder to see in their leafy environments. Good camouflage allows them to eat and not be eaten.

Released: 8-Jul-2020 9:45 AM EDT
Famous ‘Jurassic Park’ Dinosaur is Less Lizard, More Bird
University of Texas at Austin (UT Austin)

From movies to museum exhibits, the dinosaur Dilophosaurus is no stranger to pop culture. Many probably remember it best from the movie “Jurassic Park,” where it’s depicted as a venom-spitting beast with a rattling frill around its neck and two paddle-like crests on its head.

16-Jun-2020 11:50 AM EDT
Changing environment at home genetically primes invasive species to take over abroad
University of Wisconsin–Madison

Freshwater lakes have often been invaded by species from salty environments. New research shows that fluctuating conditions in the home ranges gave these species the genetic flexibility they needed to evolve and adapt to their new homes.

Released: 17-Jun-2020 12:55 PM EDT
A Neandertal from Chagyrskaya Cave
Max Planck Institute for Evolutionary Anthropology

The researchers extracted the DNA from bone powder and sequenced it to high quality. They estimate that the female Neandertal lived 60,000-80,000 years ago.

Released: 11-Jun-2020 3:05 PM EDT
URI Anthropology Professor Challenges Evolutionary Narratives of Big, Competitive Men and Broad, Birthing Women
University of Rhode Island

Poring over decades of existing research, University of Rhode Island Professor Holly Dunsworth has reevaluated and rewritten the narrow, reigning theories for sex differences in height and pelvic width in a new paper, “Expanding the evolutionary explanations for sex differences in the human skeleton.” The paper, published online by the journal Evolutionary Anthropology, maps out the critical role of estrogen production on bone growth in men and women.

Released: 27-May-2020 7:40 AM EDT
The evolutionary puzzle of the mammalian ear
University of Vienna

How could the tiny, tightly connected parts of the ear adapt independently to the amazingly diverse functional and environmental regimes encountered in mammals? A group of researchers from the University of Vienna and the Konrad Lorenz Institute for Evolution and Cognition Research proposed a new explanation for this evolutionary puzzle.

26-May-2020 8:55 AM EDT
Chimpanzees Help Trace the Evolution of Human Speech Back to Ancient Ancestors
University of Warwick

Chimpanzee lip-smacks exhibit a speech-like rhythm, a group of researchers led by the University of Warwick have found

     
Released: 20-May-2020 2:35 PM EDT
Supercomputer model simulations reveal cause of Neanderthal extinction
Institute for Basic Science

Climate scientists from the IBS Center for Climate Physics discover that, contrary to previously held beliefs, Neanderthal extinction was neither caused by abrupt glacial climate shifts, nor by interbreeding with Homo sapiens.

19-May-2020 3:00 PM EDT
Researchers reveal the simple evolutionary origins of complex hemoglobin by resurrecting ancient proteins
University of Chicago Medical Center

Researchers trace the evolutionary origins of hemoglobin by resurrecting ancient proteins from more than 400 million years ago

Released: 19-May-2020 2:40 PM EDT
Ribs evolved for movement first, then co-opted for breathing
University of Utah

A major transformation in vertebrate evolution took place when breathing shifted from being driven by head and throat muscles—like in fish and frogs—to the torso—like in reptiles and mammals. But what caused the shift? A new study posits that the intermediate step was locomotion—the mechanics follow the same pattern as inhalation and exhalation.

Released: 28-Apr-2020 8:45 AM EDT
Hurricanes twist evolution in island lizards
Washington University in St. Louis

A good grip can mean the difference between life and death for lizards in a hurricane -- and as a result, populations hit more frequently by hurricanes have larger toepads. A new study from Washington University in St. Louis is the first to demonstrate evolutionary response to hurricanes on a wide geographic scale.

Released: 21-Apr-2020 10:50 AM EDT
Human pregnancy is weird. A new study adds to the mystery
University at Buffalo

University at Buffalo and University of Chicago scientists set out to investigate the evolution of a gene that helps women stay pregnant: the progesterone receptor gene. The results come from an analysis of the DNA of 115 mammalian species.

Released: 20-Apr-2020 3:25 PM EDT
Neolithic genomes from modern-day Switzerland indicate parallel ancient societies
Max Planck Institute for the Science of Human History

Genetic research throughout Europe shows evidence of drastic population changes near the end of the Neolithic period, as shown by the arrival of ancestry related to pastoralists from the Pontic-Caspian steppe.

Released: 15-Apr-2020 1:00 PM EDT
The Best Defense Could Well Be a Beard.
Society for Integrative and Comparative Biology (SICB)

Scientists Ethan A. Beseris, Steven E. Naleway and David R. Carrier recently discovered that though having a beard won’t save you from getting knocked out in a fight, it will likely save you from collateral damage.

Released: 9-Apr-2020 2:30 PM EDT
COVID-19: Genetic network analysis provides 'snapshot' of pandemic origins
University of Cambridge

Researchers from Cambridge, UK, and Germany have reconstructed the early "evolutionary paths" of COVID-19 in humans - as infection spread from Wuhan out to Europe and North America - using genetic network techniques.

Released: 8-Apr-2020 4:55 PM EDT
Wallflowers Could Lead to New Drugs
Boyce Thompson Institute

Plant-derived chemicals called cardenolides – like digitoxin – have long been used to treat heart disease, and have shown potential as cancer therapies. But the compounds are very toxic, making it difficult for doctors to prescribe a dose that works without harming the patient. Researchers now show that the wormseed wallflower could be used as a model species to elucidate how plants biosynthesize cardenolides, knowledge that could aid the discovery and development of safer drugs.

   
Released: 1-Apr-2020 2:20 PM EDT
Modern humans, Neanderthals share a tangled genetic history, study affirms
University at Buffalo

A new study reinforces the concept that Neanderthal DNA has been woven into the modern human genome on multiple occasions as our ancestors met Neanderthals time and again in different parts of the world.

Released: 1-Apr-2020 2:00 PM EDT
Ancient hominins had small brains like apes, but longer childhoods like humans
University of Chicago Medical Center

Using precise imaging technology to scan fossil skulls, researchers found that as early as 3 million years ago, children had a long dependence on caregivers.

26-Mar-2020 9:00 AM EDT
Homo naledi juvenile remains offers clues to how our ancestors grew up
PLOS

A partial skeleton of Homo naledi represents a rare case of an immature individual, shedding light on the evolution of growth and development in human ancestry, according to a study published April 1, 2020 in the open-access journal PLOS ONE by Debra Bolter of Modesto Junior College in California and the University of the Witwatersrand, Johannesburg, and colleagues.

31-Mar-2020 3:05 PM EDT
Researchers Find Apelike Brain in Human Ancestor
Florida State University

New research from a team of anthropologists has found that a species widely accepted to be an ancestor to humans had a brain with characteristics of apes.

Released: 27-Mar-2020 11:40 AM EDT
Neanderthals ate mussels, fish, and seals too
University of Göttingen

Over 80,000 years ago, Neanderthals were already feeding themselves regularly on mussels, fish and other marine life.

Released: 26-Mar-2020 1:25 PM EDT
It’s a family thing: FSU research shows guppies help their brothers when it comes to the opposite sex
Florida State University

In a new study published by a Florida State University team, researchers found that male Trinidadian guppies observe a form of nepotism when it comes to pursuing the opposite sex. These tiny tropical fish often help their brothers in the mating process by darting in front of other males to block access to a female.

Released: 25-Mar-2020 10:05 AM EDT
Scientists investigate why females live longer than males
University of Bath

An international team of scientists studying lifespans of wild mammals have found that, just like humans, females tend to live significantly longer than their male counterparts.

   
20-Mar-2020 12:55 PM EDT
Teeth Serve as “Archive of Life,” New Research Finds
New York University

Teeth constitute a permanent and faithful biological archive of the entirety of the individual’s life, from tooth formation to death, a team of researchers has found. Its work provides new evidence of the impact that events, such as reproduction and imprisonment, have on an organism.



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