Skeleton season may be just around the corner, but the skeleton age dawned with the early Cambrian Period, about 538 million ...

Sometime before 520 million years ago, animal life began to flourish as never before. The small shells, worms and even sponge-like enigmas of earlier eras suddenly unfolded into a new array of species ...

A team of scientists digging up some of the Earth’s oldest rocks has uncovered new chemical evidence that Earth’s first animals were likely ancestors of the modern sea sponge. The discovery relies on ...

A recently discovered creature, Mosura fentoni, has stunned paleontologists with its bizarre, otherworldly features. Unveiled in the pages of Royal Society Open Science, this ancient arthropod sheds ...

Scientists at MIT have uncovered compelling evidence that ancient sea sponges were Earth's first animals. Chemical fossils ...

Paleontologists have discovered remarkable fossils in the Grand Canyon that reveal fresh details about the emergence of complex life half a billion years ago. The newfound remains of fauna from the ...

What were the first animals to appear on Earth? New research points to a surprising candidate: sea sponges. A team of ...