5 Interesting Facts About Blue Whales

This is a massive blue whale

I have always been fascinated by blue whales.

They are massive animals and seem to move through the ocean gracefully.

Here are 5 interesting facts about them:

1. They are the biggest animal that has ever lived.  At up to 100 feet long and weighing up to 200 tonnes, they are even bigger that the biggest dinosaurs.  I have seen a skeleton of one at the Melbourne Museum and it was really huge.
2. Their heart is as big as a car.
3. They are an endangered species due to extensive whale hunting, but they seem to be slowly recovering.
4. They live for a long time, with an average age estimated to be about 80-90 years.
5. Despite their massive size, they eat really tiny krill.  Krill is a very small shrimp-like creature and a hungry male blue whale can eat up to 4 tonnes of them a day.

I hope that you found these facts interesting.

Are there any interesting facts that you would like to share about blue whales?