Blue Whales have a lot of blubber (fat) which keeps them warm. While they proportionally have just as much blubber as other whales, their body contains 45 tons of it; the same amount of fat as 8,150 average humans.
They really do not need to take shelter from much except humans. For this they just dive deep into the water.
Blue whales can produce over 40 gallons of sperm .
The largest whales (blue whales) weigh 100 to 150 tons.
Blue whales are much, much larger than belugas. Blue whales are the largest animals that have ever lived on the planet.
Adult blue whales have no natural predators. They are too big and too strong to be attacked and killed by any animal. However, Orca's (Killer Whales) are known to attack and kill youngsters. A group of Orca's can easily hunt a baby blue whale if its mother is not around. Otherwise, they have no natural predators Humans are the biggest threat to blue whales. Nearly 90% of the world population of these animals were wiped out over the past century by humans by whaling.
Blue Whales inhabit all but polar seas (They live pretty much everywhere).
100 years
Penguins do not eat blue whales. They'd have to peck for hours only to get through the skin.
Because we have been hunting the whales too much, and they have been endangered.
Blue whales don't have a specific average weight. They do have a range which is round 100-120 tons. However, Blue whales can weigh as much as just over 200 tons.
No, Blue Whales are the biggest living creature in the world.