A team of researchers with the University of Chicago, University College Dublin and Cambridge University studying a 385-million-year-old shark fossil has found evidence that suggests humans and sharks shared a common ancestor ...
Snakes, some lizards and even a few mammals can have a venomous bite. Although these lineages split more than 300 million years ago, their venoms have evolved from the same ancestral salivary protein, reported scientists ...
Plants & Animals
Dec 22, 2021
0
350
A toothy grinned monster was lurking in the basement collection of a museum in Canada: The fossilized jaw of a beast that once roamed the bluffs along the South Saskatchewan River, competing with saber-toothed cats (Smilodon) ...
(PhysOrg.com) -- Contrary to a widely held scientific theory that the mammalian Y chromosome is slowly decaying or stagnating, new evidence suggests that in fact the Y is actually evolving quite rapidly through continuous, ...
Biotechnology
Jan 13, 2010
2
0
A new study of an otherworldly creature from half a billion years ago - a worm-like animal with legs, spikes and a head difficult to distinguish from its tail - has definitively identified its head for the first time, and ...
Archaeology
Jun 24, 2015
4
608
A team of paleontologists from Brazil, Argentina and the U.S., has found the fossilized remains of a creature they describe as a precursor to the pterosaur at a dig site in Rio Grande do Sul, Brazil. In their paper published ...
A multi-institutional, international team of evolutionary biologists, genetics specialists and phylogenomicists has found evidence that bird species began diversifying long before the dinosaurs went extinct.
Neanderthals and modern humans, tens of thousands of years ago, had sexual intercourse with each other in Europe and Asia. For this reason, we as modern humans still carry Neanderthal DNA in us. Researchers from Edinburgh ...
Archaeology
May 1, 2014
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0
Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of molecular parts, a chemical ...
Cell & Microbiology
Oct 5, 2011
11
0
A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding ...
Evolution
Sep 13, 2012
2
0
