Lunadong fossils support theory of earlier dispersal of modern man
(Phys.org) —Scientists are now considering the possibility that the exodus of modern man from Africa may have been earlier than 60,000 years ago as traditionally thought. Christopher Bae, a paleoanthropologist ...
Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation
Sticklebacks, the roaches of the fish world, are the ideal animal in which to study the genes that control body shape. They've moved from the ocean into tens of thousands of freshwater streams and lakes around ...
Jurassic Welsh mammals were picky eaters, study finds
For most people, mere mention of the word Jurassic conjures up images of huge dinosaurs chomping their way through lush vegetation – and each other. However, mammals and their immediate ancestors were also ...
Lead in teeth can tell a body's tale
Your teeth can tell stories about you, and not just that you always forget to floss.
How teeth explain the tree of life
Clues contained in mice teeth have allowed scientists to reconstruct evolutionary history in the laboratory.
Scientists reproduce evolutionary changes by manipulating embryonic development of mice
A group of researchers from the University of Helsinki and the Universitat Autònoma de Barcelona have been able experimentally to reproduce in mice morphological changes which have taken millions of years to occur. Through ...
Shark teeth analysis provides detailed new look at Arctic climate change
A new study shows that some shark species may be able to cope with the decreasing salinity of Arctic waters that may come with rising temperatures.
Tooth-picking behavior identified in the middle Pleistocene hominins of Eastern China
Interproximal grooves have been identified on a variety of Pleistocene Homo taxa from different sites across the Old World. A diversity of hypotheses has been proposed to explain these interproximal grooves, ...
New dinosaur found in Portugal, largest terrestrial predator from Europe
A new dinosaur species found in Portugal may be the largest land predator discovered in Europe, as well as one of the largest carnivorous dinosaurs from the Jurassic, according to a paper published in PLOS ON ...
Native American city on the Mississippi was America's first 'melting pot'
New evidence establishes for the first time that Cahokia, a sprawling, pre-Columbian city situated at the confluence of the Missouri and Mississippi rivers, hosted a sizable population of immigrants.
Stiffness and hardness of sheep molar enamel is lower than that of humans
A first-ever study investigating the survival of ovine teeth has found the stiffness (Young's modulus) and hardness of sheep molar enamel is lower than that of human molar enamel, while the toughness of sheep ...
New study of fossil teeth shows that environment, as well as diet, may impact dental wear
(Phys.org) —Researchers at the University of Arkansas have established that pits and scratches on the teeth of mammal fossils give important clues to the diet of creatures that lived millions of years ago. ...
'Steak-knife' teeth reveal ecology of oldest land predators
The first top predators to walk on land were not afraid to bite off more than they could chew, a University of Toronto Mississauga study has found.
Biology of early human relative uncovered
The partial skeleton of an ancient hominin has been uncovered for the first time in Tanzania, giving a new insight into the species' biology, say scientists.