Animals

#842 Is a killer whale a whale?

Is a killer whale a whale? Yes and no. Yes, because dolphins are technically whales. No, because a killer whale is a dolphin. They are called orcas, although they are more commonly known as killer whales. A killer whale is called a whale because of its size, but it is actually a dolphin. The orca

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#809 What do worms do?

What do worms do? They break down organic matter in the soil and release the nutrients in their waste. Earthworms may all look the same to us, but there are 7,000 different species of them across the world. 150 of those species are the ones we commonly see. There are far more worms in the

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