Evolutionary arms races between marine animals overhauled ocean ecosystems on scales similar to the mass extinctions triggered by global disasters, a new study shows.
Third recent Northwestern University-led study to detect calcification stress before and across ancient ocean acidification events.
The earliest multicellular organisms may have lacked heads, legs, or arms, but pieces of them remain inside of us today, new research shows. According to a UC Riverside study, 555-million-year-old oceanic creatures from the Ediacaran period share genes with today's animals, including humans.
Spectacular fossil plants preserved within a volcanic ash fall in China have shed light on an evolutionary race 300 million years ago, which was eventually won by the seed-bearing plants that dominate so much of the Earth today.
Woolly mammoths may have walked the landscape at the same time as the earliest humans in what is now New England, according to a Dartmouth study published in Boreas. Through the radiocarbon dating of a rib fragment from the Mount Holly mammoth from Mount Holly, Vt., the researchers learned that this mammoth existed approximately 12,800 years ago. This date may overlap with the arrival of the first humans in the Northeast, who are thought to have arrived around the same time.
3D imaging of the dinocephalian, Anteosaurus, shows that this massive premammalian reptile that grew to the size of a full-grown hippopotamus, was a highly agile killing machine, and not a slow stodgy scavenger as previously believed.
New research has revealed that the diets of early lizards and snakes, which lived alongside dinosaurs around 100 million years ago, were more varied and advanced than previously thought.
In June 2019, an international team brought the complete skull of the 3.67-million-year-old Little Foot Australopithecus skeleton, from South Africa to the UK and achieved unprecedented imaging resolution of its bony structures and dentition in an X-ray synchrotron-based investigation at the UK's national synchrotron, Diamond Light Source. The X-ray work is highlighted in a new paper in e-Life, published today focusing on the inner craniodental features of Little Foot.
A long-held hypothesis is that the mammal backbone evolved from a backbone that functioned similar to that of living reptiles. In a paper in Current Biology, a team of researchers led by Harvard University challenge this "lateral-to-sagittal" hypothesis and show non-mammalian synapsids moved their backbone in a manner that was distinctly their own and quite different from any living animal.
Scientists who study capuchin monkeys on a nature reserve in Brazil found that stone tools are used for digging, seed pounding, and stone-on-stone percussion. The monkeys can serve as a model to help understand how humans evolved to use tools.