9781422278611

Are dolphins smarter than people? Their brains

are bigger than ours — 3.5 pounds (1.6 kilograms) compared to 2.9 pounds

While humans don’t have the biggest brains in the world, we have good- sized brains compared to our bodies. We’ve used our intelligence to make many incredible things — just look around you! However, other animals use their brains in ways we can’t. Bees communicate by dancing, and birds use magnetic fields to navigate. And don’t forget —we smart humans sometimes still do very dumb things!

(1.3 kilograms). Bottlenose dolphins are so smart that they teach their young to put sponges on their noses to help them find food in rough places, like rocky reefs. Bet your parents never taught you that!

who dropped the sponge?

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