New starfish-like fossil reveals evolution in action

Researchers from the University of Cambridge have discovered a fossil of the earliest starfish-like animal, which sheds light on the origins of the nimble-armed creature. The prototype starfish, which has features in common ...

480-million-year-old fossils reveal sea lilies' ancient roots

Sea lilies, despite their name, aren't plants. They're animals related to starfish and sea urchins, with long feathery arms resting atop a stalk that keeps them anchored to the ocean floor. Sea lilies have been around for ...

Colonization in slow motion

There is a wide variety of animals living on the Arctic seabed. Attached to rocks, they feed by removing nutrients from the water using filters or tentacles. But it can take decades for these colonies to become established, ...

Escalating arms race: Predatory sea urchins drive evolution

(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in the prey species.

page 1 from 2