The blue whale has the biggest heart of any animal.
A blue whale's heart can be as big as a small car. It pumps a huge amount of blood around its giant body.
🐳 Amazing Whale Facts
Whales are enormous sea animals that breathe air and sing to each other.
The blue whale is the biggest animal, longer than three school buses.
A blue whale can be about 30 metres long. If you lined up three school buses end to end, the whale would still be just as long!
The blue whale is the biggest animal that has ever lived — bigger than any dinosaur.
A blue whale can grow to about 30 metres long and weigh as much as 30 elephants. Its heart is roughly the size of a small car, and a blue whale calf can gain around 90 kg a day just from its mother's milk.