Basically, the starfish was all headlike. This contradicts textbook descriptions of echinoderms, the evolutionary group that includes starfish, as animals that have lost their head. This study shows that “rather than losing their head, they’re almost entirely head, and they’ve actually lost their trunk,” Lowe says.
Via the always great Curious About Everything Newsletter.
Published on December 20, 2023 – science – animals – the sea