Member-only story
A creature with no brain!
2 min readDec 22, 2021
But lives & swims!
What! No brain? How do they live!
The jellyfish has a set of nerves where neurons are concentrated. It is a processing station for sensory & motor activity.
The neurons send chemical signals to the muscles to contract, allowing them to swim.
The nervous system detects light, vibrations & chemicals in the water. They have a sense of gravity to orient & navigate the water. Jellyfish are not fish at all, they are a dome-shaped invertebrates, whereas fish has a backbone.
Not only that, they have no blood, no bones, no heart!
Some Jellyfish are immortal!
The tiny Turritopsis dohrnii jellyfish has a remarkable life cycle; after reaching sexual maturity, it can revert to a juvenile state.
Furthermore, there is no apparent limit to…
