The blue whale is the largest animal to ever exist, reaching up to 32.9 meters long and weighing up to 172 tons. It lives in oceans around the world and feeds primarily on krill. Though blue in color, its shade can vary from dark blue to grayish. Despite its massive size, its only predator is the orca whale in rare cases.

1. Blue whale

2. Description
The blue whale is a marine mammal of the
suborder of baleen whales. With a length of up to
32.9 meters long and weighs up to 172 tons or
more, is the largest animal that has ever existed

3. Country/Continent
Blue whales live in the Indian Ocean and the
South Pacific and also in the northern Atlantic and
Pacific Oceans

4. colour
Body long and slender blue whale can have a
different color of blue shades of gray on the back
and a little lighter on the ventral

6. size
Having a length of up to 32.9 meters long and
weighs up to 172 tons or more, is the largest
animal that has ever existed.

8. food
Blue whales feed almost exclusively on krill,
though they also take small numbers of
copepods. The species of zooplankton eaten by
blue whales varies from ocean on the other.

10. Interesting information
Because of its huge size, power and speed, adult
blue whales have virtually no natural predators.
However, there is a documented case in National
Geographic of a blue whale attacked by orcas.
Although whales were not able to kill the animal
during the attack, the blue whale received serious
wounds and probably died shortly after the attack

11. http://www.youtube.com/watch?v=x2bP5FONNxo

12. By David Martin 3B