Brittle Stars: Brainless Echinoderms Can Also Learn Through Experience [Study]
The headless and brainless brittle stars have nerve cords that receive stimuli. Click to read more. Brittle stars, unlike starfish, spend most of their lives lurking under rocks and burrowing in the sand of the world's oceans.
United States Hans Hillewaert Wikimedia Commons Smithsonian National Museum Of Natural History Behavioral Ecology Current Biology
Source: natureworldnews.com