Earth’s vertebrate diversity may be far richer than anyone realized. A sweeping analysis of more than 300 studies suggests that for every known fish, bird, reptile, amphibian, or mammal species, there ...

A new study led by researchers at the University of Arizona suggests that for every recognized vertebrate species, there are, on average, two ...

Researchers at the University of Arizona say there may be at least twice as many vertebrate species as previously recognized.

Add Yahoo as a preferred source to see more of our stories on Google. After an ancient extinction killed about 85% of marine species, survivors in isolated refuges helped jawed vertebrates diversify ...

How many fossils does it take to accurately train an image-based AI algorithm? According to a new study co-authored by Bruce ...

The most effective conservation strategies for protecting vertebrates on a global scale are those aimed at mitigating the effects of overexploitation, habitat loss and climate change, which are the ...

Biologists have considered nearly every major taxon of animals as the key starting point for the evolution of vertebrates. We survey these ideas, many of which are no longer tenable in the light of ...

A major fossil discovery in Canada sheds new light on the development of the earliest vertebrates, including the origin of jaws, the first time this feature has been seen so early in the fossil record ...

Those of you who took high school biology may remember the lancelet, also known as the amphioxus. Its simplified body plan is notable for containing a number of features that it shares in common with ...

A stunningly preserved, soft-bodied fish that is more than 500 million years old could be the ancestor of almost all living vertebrates. The fossilized fish, called Metaspriggina, sports ...

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold. As a rule, mammals and birds have the largest brains in relation to their body size, ...

Fossils of the prehistoric fish genus myllokunmingiid, more than 518 million years old, reveal that early vertebrates may have had four functional eyes. Researchers found that two large lateral eyes ...