Earth's early sponges were soft: Scientists close fossil record gap

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic information from living sponges, as well as chemical signals from ancient rocks, ...
Salon

Long thought to be immobile, some sea sponges can actually move — but at a grisly price

Viewers of “SpongeBob Squarepants” have been woefully misinformed about the reality of being a sponges. Far from being yellow, rectangular and hyperactive, sponges come in all shapes, sizes and colors ...