At a time when other paleontologists were convinced that the fossil record could best be explained by directed variation, Simpson disagreed. He said that fossil patterns needed no mystical or goal ...

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey ...

We call all of the fossils we have found the fossil record. This record shows us how living things have changed from simple life forms billions of years ago. Not all fossils have been found and ...

“Ecdysozoans were prevalent in the Cambrian fossil record and we know they didn ... and then flipping it over to find an entire ecosystem. That’s what’s really unique about this locality.

Researchers have discovered the oldest known example of a predator-prey “arms race,” based on their study of ancient fossils. This ancient predator-prey relationship took place 517 million years ago ...

in the fossil record, but a 430-million-year-old mollusk ... While the nodules can preserve an entire animal’s body in 3-D, the cross-section that becomes visible when a nodule is cracked ...

Among the great apes, our closest relatives are the chimpanzees and bonobos (Figure 1). The fossil record, along with studies of human and ape DNA, indicate that humans shared a common ancestor ...