Blue whales are the largest animals ever known to have lived on Earth, growing up to 30 meters long.
A blue whale’s heart can weigh as much as a small car, around 180 kilograms.
Blue whales consume up to 4 tons of krill per day during feeding seasons.
Blue whales communicate using low-frequency calls that can travel hundreds of miles underwater.
Despite their massive size, blue whales can swim up to 50 km/h when needed.
A blue whale calf gains about 90 kilograms per day during its first year.
The Biggest Animals:
#1
The Heaviest Animals:
#1
The Fastest Animals:
#26
The Longest Living Animals:
#4
The Loudest Animals:
#2
30 meters
190 tons
100 years
50 kmph
