Blue whales have a worldwide distribution and can be found in all the world's oceans. They travel extensively, feeding heavily in cool waters and migrating to warm waters to breed and give birth.
Blue whales live in all the oceans across the globe. They are migratory, and travel great distances at different times in their lives. The three main regions where blue whales are found are the North Atlantic, the North Pacific and the Southern hemisphere.
The blue whale feeds on small organisms called copepods and krill. It eats by sucking in a mouthful of water and krill and then filtering out the water through its baleen bristle teeth.
Blue whales weigh approximately 200 tons and can grow to a length of between 82 and 105 feet. They are the largest mammals to have ever lived on earth.
The ocean is blue because the water in the ocean acts as a massive light filter. When the light from the sun hits the water, the ocean water absorbs red light, leaving the blue and green colors of the spectrum behind for humans to view.
In addition to being the largest member of the mammal family, the blue whale is also the largest creature known to have ever inhabited the planet. This marine giant grows up to 105 feet in length, can weigh up to 200 tons and can live to be 90 years old.
Whalers once hunted blue whales for their blubber, which was rendered into whale oil. They also hunted whales for meat. The International Whaling Commission banned commercial hunting of blue whales in 1966. Whaling is no longer a major threat to blue whales although the...