Fresh analysis of a reptile fossil is helping scientists solve an evolutionary puzzle -- how snakes lost their limbs.
Computer simulations have allowed scientists to work out how a puzzling 555-million-year-old organism with no known modern relatives fed, revealing that some of the first large, complex organisms on Earth formed ecosystems that were much more complex than previously thought.
Extinct archosaurs' eggshell porosity may be used as a proxy for predicting covered or exposed nest types, according to a study published Nov. 25, 2015, in the open-access journal PLOS ONE by Kohei Tanaka from the University of Calgary and colleagues.
A 'dinosaur' fossil originally discovered on Prince Edward Island has been shown to have steak knife-like teeth, and researchers from U of T Mississauga, Carleton University and the Royal Ontario Museum have changed its name to Dimetrodon borealis -- marking the first occurrence of a Dimetrodon fossil in Canada.
A team based at the University of Kansas last week published a description of a previously unknown anthropoid primate -- a forerunner of today's monkeys, apes and humans -- in the Journal of Human Evolution. They've dubbed their new find Apidium zuetina.
New observations from an international geophysics team, including Carnegie's Lara Wagner, suggest that the standard belief that the Earth's rigid tectonic plates stay strong when they slide under another plate and sink into the deep Earth may not be universal. Instead, the new work suggests that the Nazca slab in Peru may be relatively weak and deforms easily.
Earth's oxygen-rich atmosphere emerged in whiffs from a kind of blue-green algae in shallow oceans around 2.5 billion years ago, according to new research from Canadian and US scientists.
A muscly fossil fireworm, discovered by scientists from the University of Bristol and the Natural History Museum, has been named Rollinschaeta myoplena in honor of punk musician and spoken word artist, Henry Rollins.
UK researchers have unearthed ancient fossil forests, thought to be partly responsible for one of the most dramatic shifts in the Earth's climate in the past 400 million years.
This week from AGU: Magma ocean, Underwater waves, & 5 new research papers.