1001 Space Earth Nature Evolution Fossils and Prehistoric Life Dinosaurs Simple Animals Insects and Spiders Fish Amphibians Reptiles Birds Sea Mammals Land Mammals Plant Kingdom How Plants Live Unusual Plants Ecology Conservation Animal Behaviour Pets and Farm Animals History Human World Science and Technology

Choose a Page:Does the killer whale deserve its ...What is a sea mammal?Why do whales sing?*Which is the biggest whale?*Why do whales spout?How does a whale leave a 'footprint'?Are mermaids real?Why do dolphins beach themselves?What is a narwhal's tusk used for?Why does the elephant seal have an...How did the right whale get its name?How does a seal keep warm?What is the difference between a s...Why does a walrus have tusks? Which is the biggest whale? The biggest whale, and indeed the biggest mammal, that has ever existed on earth is the blue whale. It can grow up to 30 metres long and can weigh as much as 30 African bull elephants. The blue whale   Previous: Back Book: 1001 Section: Nature Chapter: Sea Mammals