Sci Five | The Hindu’s Science Quiz: On Brains

Spiders Crab Scorpions Mites Their skulls are very thick Their skulls contain a fluid that protects the brain Their skulls have air pockets that cushion the brain from the jolts from pecking trees. Their skulls don’t have any protection. They eventually get brain damage. Elephants Sperm whale Rhinoceros Killer whales Sea urchins Leech Starfish Sponges Octopuses have a centralized nervous system.

Octopuses have no nervous system. Each arm of an octopus can act semi independently. An octopus’s brain to body ratio is the smallest of any invertebrate Copy link Email Facebook Twitter Telegram LinkedIn WhatsApp Reddit COMMents SHARE Copy link Email Facebook Twitter Telegram LinkedIn WhatsApp Reddit The Hindu Quizzes / animal science / science (general).