Tiny cat-sized stegosaur leaves its mark
Credit: Kamitoge A single footprint left by a cat-sized dinosaur around 100 million years ago has been discovered in China ...
Tag: Evolution
A rich marine algal ecosystem 600 million years earlier than previously thought
Biomarker evidence from fossilised algae remainsCredit: © Don E. Canfield/University of Southern Denmark The first photosynthetic oxygen-producing organisms on Earth ...
Study of marten genomes suggests coastal safe havens aided peopling of Americas
Credit: L. L. Master LAWRENCE -- How did the first humans migrate to populate North America? It's one of the ...
Confirmed: Island gigantism and dwarfism result of evolutionary island rule
Credit: Frank Glaw, Jörn Köhler, Ted M. Townsend, Miguel Vences, CC BY 2.5, via Wikimedia Commons It is an old-standing ...
Researchers generate human-monkey chimeric embryos
Credit: Weizhi Ji, Kunming University of Science and Technology Investigators in China and the United States have injected human stem ...
More than $700,000 from CIHR to study the bacteria that causes meningitis
Understanding the mechanism of pathogenesis of nasopharyngeal bacteria could lead to innovative treatment optionsCredit: Christian Fleury (INRS) Professor Frédéric Veyrier ...
Birds take tRNA efficiency to new heights
Credit: Claudia Kutter Birds have been shaped by evolution in many ways that have made them distinct from their vertebrate ...
Genetic admixture in the South Pacific: from Denisovans to the human immune response
Credit: © Institut Pasteur Describing the genetic diversity of human populations is essential to improve our understanding of human diseases ...
Dueling evolutionary forces drive rapid evolution of salamander coloration
Credit: Sean Giery, Penn State UNIVERSITY PARK, Pa. -- Two opposing evolutionary forces explain the presence of the two different ...
Study cements age and location of hotly debated skull from early human Homo erectus
Scientists also find two new, nearly 2-million-year-old specimens--likely the earliest pieces of the H. erectus skeleton yet discoveredCredit: A. Hammond/© ...
Childbirth versus pelvic floor stability
An evolutionary history of compromisesCredit: © Katya Stansfield Evolutionary anthropologists from the University of Vienna and colleagues now present evidence ...
Megafauna extinction mystery – size isn’t everything
Credit: Illustration by Gabriel Ugueto Ancient clues, in the shape of fossils and archaeological evidence of varying quality scattered across ...
Ancient ammonoids’ shell designs may have aided buoyancy control
Researchers use 3-D-printed models to explore fractal-like interior shell patternsCredit: David Peterman Ammonoids, ancestors of today's octopus, squid and cuttlefish, ...
Frog species with 6 sex chromosomes offer new clues on evolution of complex XY systems
The O. swinhoana frog species is the first vertebrate known to retain descendant genes that now determine sex in mammals, ...