New research shows that the earliest sponges were soft bodied and lacked skeletons, explaining why their oldest fossils are ...

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

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

Which animals came first? For more than a century, most evidence suggested that sponges, immobile filter-feeders that lack muscles, neurons and other specialized tissues, were the first animal ...