1. Without a brain, you’d die in just a few minutes. But a cockroach can run around for weeks with its head cut off.
2. Stegosaurs may have been the most brainless animals ever to live. The 2-ton dinosaurs were more than 30 feet (10 meters) long, but some scientists think their brain was the size of a walnut.
3. A housefly’s brain has 300,000 neurons. It also has clumps of nerve tissue that detect and process smells, sounds, temperature, light patterns, pressure, textures, and taste.
4. An octopus has a fairly good memory and is capable of learning. Its brain has 300 million neurons and small, lobe-like structures.
5. How does a Mohave rattlesnake stop prey in its tracks? The poison flowing out of its fangs shuts down the chemicals that carry messages to the animal’s brain. And if the victim’s nerves can’t work, neither can anything else.
Looking for more Gross and Goofy Body facts? Check out my book You’ve Got Nerve: The Secrets of the Brain and Nerves. It’s full of weird, wacky, strange, and surprising information about your body and the bodies of other animals.