There are two types of whales: the baleen whales and the toothed whales. Baleen whales, including humpbacks and blue whales, have fibrous 'baleen' plates in their mouths instead of teeth, which help ...

Lisa has been writing for People Inc. since 2005 and works with a wide range of educational publishers, conservation nonprofits, and research institutions. She has written for science museums, nature ...

Beavers are around 70-100cm long with a tail of 30-40cm. They have stocky bodies, short legs with webbed toes and flat hairless tails. Their coat is thick and brown with a short, waterproof under coat ...