The blue whale's heart weighs about a ton. See this site for a reference: http://www.thebigzoo.com/Animals/Blue_Whale.asp
Read more: Which_animal_has_the_largest_heart
the blue whale
The tallest animal is the giraffe. The heaviest is the blue whale.
There is none because one animal can't be the biggest animal and the smallest animal at the same time!
One of the animals that are the heaviest and also have the lightest hearts are the whales ,a very large animals that is not equip with a large heart.
The blue whale has the biggest heart in the world
all of them hydra & worms dose not have liver
Blue whale...it can grow to over 108 ft in length and weigh more than 200 tons.
The heaviest animal is the blue whale. It weighs about 150 tons.
The Biggest rock.
The biggest land animal is the African elephant, and the biggest water animal is the blue whale. Whales are much bigger than elephants.
SW - This can't be true! What about all the other whales? The second heaviest animal in the world is an African elephant, The heaviest being a Blue whale at 190tonns
The heaviest animal is the blue whale. Giant squid isn't even Close.