Researchers studying the soft-bodied Ediacaran biotas of the world generally accept that there are three distinct assemblages. The 575–560-million-year-old (Ma) Avalon Assemblage is best known from ...

Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges.

Sponges may be ancient, but their timeline has been murky. New research suggests the earliest sponges were soft and ...

A new fossil discovery suggests that Earth's first mass extinction may have been far more sudden and severe than previously ...

Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass ...

The earliest sponges to live on the earth were soft and skeletonless pioneers - rewriting the story of the origin of animal ...

A 58,000-hectare Australian expanse containing some of the world's oldest evidence of animal life could be included on the ...

Memorial University paleobiologist Duncan McIlroy and a PhD student in the Faculty of Science recently named another ancient species, new to the scientific world and discovered right here in ...