6 Surprisingly 'Brainless' Animals That Defy Expectations
Jellyfish
No brain, survive with a simple nerve net for basic functions.
Sponges
Lack nervous system, filter water for food using basic cellular processes.
Sea Stars
No brain, rely on nerve ring for movement and basic behavior.
Corals
Brainless colonies of polyps, survive through simple biological processes and reproduction.
Flatworms
No brain, exhibit basic behaviors and regenerate lost body parts.
Amoebas
Single-celled organisms, move and feed without a brain, using pseudopodia.