The largest animal alive is the blue whale. Fully grown, these great creatures reach a length of over 30 meters and weight as much as twenty four large elephants, are more than 1.500 men. The heart of a blue whale is more than a meter in diameter.
The blue whale is not a fish, even though it spends its entirely life in the sea. Whales are mammals, just like us. A mother whale gives birth to a live baby whale, not an egg. She feeds her baby with her own milk. Fish are cold-blooded whereas whales are warm-blooded. and they have lungs and breathe the air, like us.
For all its size, a blue whale feeds manly on tiny shrimps. It is harmless to people. Unfortunately, for the blue whale, people are not harmless to them. So many blue whales have been hunted and killed that very few of these magnificent animals are now alive.
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