A Venus’s-flower-basket isn’t all show. This stunning deep-sea sponge can also alter the flow of seawater in surprising ways. A lacy, barrel-shaped chamber forms the sponge’s glassy skeleton. Flow ...

Deep under the sea lies a creature that sort of looks like a ghostly tulip. The glass rope sponge has a cup-shaped, filter-feeding top and a thin anemone-covered stem tethering it to the ground. One ...

Scientists have uncovered the genetic underpinnings of one of the ocean's most bizarre animals: a branching marine worm named Ramisyllis kingghidorahi that lives inside sea sponges and reproduces in a ...

A team of MIT geochemists has unearthed new evidence in very old rocks suggesting that some of the first animals on Earth were likely ancestors of the modern sea sponge. The newly identified chemical ...