Mindless! 6 Animals That Do Not Have A Brain

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Sea Urchins

In place of a brain, these small spiny animals have nerve centers throughout their bodies that help them function.

Starfish

Starfish live without brains and carry out all the functions with the distributed nervous system.

Sea Cucumber

Apart from the brain, these sea animals have a ring of nerves across their body that help them control everything.  

Oysters

These creatures that are found on the ocean floor functions have a simple nervous system that helps them survive.

Sea Lilies

Much like other echinoderms, Sea Lilies aka Crinoids do not have brains. But they have a nervous system that helps them in activities. Apart from the brain, they do not have a heart or gut. 

Jellyfish

The bright creatures of the sea world do not have a brain. However, they have nerves that serve as sensory organs and help them detect touch and temperature.