For decades, scientists have puzzled over a significant gap in the fossil record of Earth's earliest animals, with genetic ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

Earth’s first sponges may have been ghostly, soft-bodied pioneers—ancient animals that evolved long before their skeletons ...

A Canadian geologist may have found the earliest fossil record of animal life on Earth, according to a report published Wednesday in the journal Nature. Around a billion years ago, a region of ...

Recently found primitive sponge fossils from South Australia suggest that animals have been on Earth for at least 650 million years. This discovery pushes back the fossil record for animals by about ...

Field locations in the Northwest Territories of Canada where fossils that may represent the earliest known animal life sponges that lived roughly 890 million years ago were found in mountainous ...

A Canadian geologist may have found the earliest fossil record of animal life on Earth, according to a report published Wednesday in the journal Nature. Around a billion years ago, a region of ...

WASHINGTON (AP) — A Canadian geologist may have found the earliest fossil record of animal life on Earth, according to a report published Wednesday, July 28 in the journal 'Nature.' Around a billion ...