00:00Jellyfish. Mesmerizing, alien-like, and over 500 million years old.
00:05But here's the twist. They have no brain.
00:08So how do they sense the world, move through the oceans, and even hunt?
00:12Instead of a brain, jellyfish rely on a simple nerve net spread throughout their body.
00:17This network helps them detect touch, changes in light, and water currents.
00:21Along the edge of their bell, jellyfish have special sensory organs called ropalia.
00:27These tiny structures act like nature's navigation tools, detecting light, orientation, and even helping them stay upright in the water.
00:35Movement comes from rhythmic muscle contractions, pulses that push them forward.
00:39The nerve net coordinates these pulses, keeping them moving with surprising grace.
00:45And when it comes to food, jellyfish use stinging tentacles loaded with specialized cells called nematocysts.
00:51These fire microscopic harpoons that paralyze prey, all without a single thought.
00:57So while jellyfish may not have a brain, their unique biology proves that intelligence isn't the only way to thrive.
01:04For half a billion years, these brainless drifters have mastered the art of survival.
01:09Fascinated by creatures of the deep?
01:11Subscribe to Animal Voice for more amazing animal stories.
Comments