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Evolution 亚博棋牌平台
October 23, 2020

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The first analysis of a sedimentary drill core representing 1 million years of environmental history in the East African ...

Climate Change Likely Drove Early Human Species to Extinction, Modeling Study Suggests

Of the six or more different species of early humans, all belonging to the genus Homo, only we Homo sapiens have managed to survive. Now, a study ...

Scientists Reconstruct Beetles from the Cretaceous

An international research team has examined four newly found specimens of the Mysteriomorphidae beetle using computer tomography and has been able to reconstruct them. The results allow to draw ...

Toothless Dino's Lost Digits Point to Spread of Parrot-Like Species

A newly discovered species of toothless, two-fingered dinosaur has shed light on how a group of parrot-like animals thrived more than 68 million years ...
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Experts have examined the evidence that prehistoric flying reptiles called pterosaurs had feathers and believe they were, in fact, ...

Sentinels of Ocean Acidification Impacts Survived Earth's Last Mass Extinction

Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient -- having survived dramatic global climate change and Earth's most recent ...

Primate Brain Size Does Not Predict Their Intelligence

A research team has systematically investigated the cognitive abilities of lemurs, which have relatively small brains compared to other primates. Conducting systematic tests with identical methods ...

Genome of Alexander Fleming's Original Penicillin-Producing Mold Sequenced

Researchers have sequenced the genome of Alexander Fleming's penicillin mould for the first time and compared it to later ...

Y Chromosomes of Neanderthals and Denisovans Now Sequenced

An international research team led by Martin Petr and Janet Kelso of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has determined Y chromosome sequences of three ...

Placing Barthelonids on the Tree of Life

Researchers have categorized barthelonids, a group of microscopic anaerobic flagellates, as an early branching Metamonada lineage based on their genetic identity and mitochondrial evolutionary ...

Genome Duplications as Evolutionary Adaptation Strategy

Genome duplications play a major role in the development of forms and structures of plant organisms and their changes across long periods of evolution. Biologists made this discovery in their ...

Researchers find that the molecular mechanisms underlying tail regeneration in West African lungfish are similar to those seen in amphibians, suggesting the trait evolved in a common ...

Computational Study of Famous Fossil Reveals Evolution of Locomotion in 'Ruling Reptiles'

Scientists used three-dimensional computer modelling to investigate the hindlimb of Euparkeria capensis -- a small reptile that lived in the Triassic Period 245 million years ago -- and inferred that ...

Discovery of Microbes With Mixed Membranes Sheds New Light on Early Evolution of Life

Current research suggests that more complex life-forms, including humans, evolved from a symbiosis event between bacteria and another single-celled organism known as archaea. However, evidence of a ...

World's Oldest Animal Sperm Found in Tiny Crustaceans Trapped in Myanmar Amber

New research has led to the discovery of world's oldest animal sperm inside a tiny crustacean trapped in amber around 100 million years ago in ...

Scientists Identify Gene Family Key to Unlocking Vertebrate Evolution

New research finds that the traits that make vertebrates distinct from invertebrates were made possible by the emergence of a new set of genes 500 million years ago, documenting an important episode ...

World's Largest DNA Sequencing of Viking Skeletons Reveals They Weren't All Scandinavian

Invaders, pirates, warriors - the history books taught us that Vikings were brutal predators who travelled by sea from Scandinavia to pillage and raid their way across Europe and beyond. Now ...

Paleontology: The Oldest Known Sperm Cells

An international team of paleontologists has discovered giant sperm cells in a 100-million year-old female ostracod preserved in a sample of amber. Clearly, the tiny crustacean had mated shortly ...

DNA Unlocks a New Understanding of Coral

A new study challenges more than 200 years of coral classification. Researchers say the 'traditional' method does not accurately capture the differences between species or their ...

Over a Century Later, the Mystery of the Alfred Wallace's Butterfly Is Solved

An over a century-long mystery has been surrounding the Taiwanese butterfly fauna ever since the 'father of zoogeography' Alfred Russel Wallace described a new species of butterfly: Lycaena ...

An Evolutionary Roll of the Dice Explains Why We're Not Perfect

Scientists have found that chance events can be more important than natural selection in defining the genome of species like humans and other ...

In Ancient Giant Viruses Lies the Truth Behind Evolution of Nucleus in Eukaryotic Cells

An exchange of genetic material that occurred when ancient giant viruses infected ancient eukaryotic cells could have caused the nucleus of the eukaryotic cell -- its defining feature -- to form. A ...

New Fossil Ape Discovered in India

A 13-million-year-old fossil unearthed in northern India comes from a newly discovered ape, the earliest known ancestor of the modern-day gibbon. The discovery fills a major void in the ape fossil ...

Skeletal Study Suggests at Least 11 Fish Species Are Capable of Walking

An international team of scientists has identified at least 11 species of fish suspected to have land-walking ...

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