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Incredible reality on the animal’s brain

Woodpeckers with airbags in their heads, sea squids eat their own brains, giant squids eat food through their brains …

1. Spider brain

The brains of spiders are relatively large compared to the rest of the body, their brains are not only above the head but also distributed along the legs. The Smithsonian Institute for Tropical Research conducted a study and found that the central nervous system of the world’s smallest spiders made up almost 80% of their body cavity. Meanwhile, the human brain makes up only 2-3% of body weight.

2. Brain leeches

For us, leeches are both frightening and magical an animal. They cling to the skin and suck blood, but are able to clean infected wounds. Although scary but we can’t deny it, they are “fascinating” creatures. They have 5 eyes, 300 teeth and 32 brains. They are supposed to have only one brain, but their brain is made up of 32 nodes. Nodes are groups of nerve cells that organize and process signals in the body. It plays the role of receiving signals from the body and transmitting important signals to the brain. Without lymph nodes, the brain will not be able to process all of the information received and will be overwhelmed trying to coordinate different parts of the body at the same time.
3. The giant squid consumes food through the brain
With giant squids, they have to crush the food into relatively small pieces, because when swallowed, the food has to pass through the brain in a donut shape before descending into the esophagus. If the food is not crushed, the brain can be destroyed as it passes. Steve O’She of Auckland University of Technology, New Zealand, revealed in the British Metro Times that the male giant squid weighs 150kg, length 10m, the penis is 1.5m long but n has only one brain. Small 15g only.
4. Zombie ants with fungi in the brain
It’s not really the ant’s brain, but in this particular case, it interacts with certain parasitic fungi. Cordyceps fungi invade the insect’s body and turn them into “zombies,” which manipulate the ant’s behavior to propagate and multiply fungal spores. The fungus will “order” the “pretend” ant to crawl up to a leaf and suddenly lock its lower jaw to the midrib, preventing the ant from moving and the fungus will snap into place. it wants. When the ant dies, this is also the time when the fungus begins to sprout on the head of the ant, forming a shaggy blanket of fungus spores and falling to the forest floor after dark.
5. Wasps with the smallest nervous system in the insect world

Although they have a complete body with eyes, brain, wings, muscles, intestines, and genitals, Megaphragma wasps are smaller than a single-celled amoeba (single-cell metamorphosis). Wasps have the smallest nervous system of all insects, researchers say. Some of the nerve cells that exist inside the hornet’s head grow outward as it matures because there isn’t enough room to store in its head. Fortunately, when grown outward, these nerve cells only last 5 days.

6. The sea squid eats its own brain

This organism clings to corals and filters food from seawater. A squid is a hermaphrodite, having male and female reproductive organs, which reproduce by releasing eggs and sperm into the water at the same time. After about 3 days, the eggs turn into tadpole-like larvae, dispersing in search of a site to grow.

They dive to the bottom and congregate in one place and live there for the rest of their lives. At this point, the squid begins to eat all parts of the body. It begins to “absorb” the eyes and the spine, and eventually it digests its brain ganglia, because once installed it no longer needs them.

7. Woodpecker with airbag in mind

Have they ever wondered why woodpeckers don’t get brain damage when they hit hard surfaces for a long time. Like all birds, woodpeckers have a very complex, small and very light skull. The skull of an average bird weighs only 1% of its body weight. However, the peaks have additional airbags in the head, which act as brain cushions to limit the effects of bashing on hard surfaces.

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