Answer:
the answer is a blue whale,
Step-by-step explanation:
The Blue whale is the largest animal that roams the planet, so its safe to say it has the biggest heart.
blue whale
The human heart is about the size of a fist — and a cow's heart is the size of a human head. The largest animal heart is the blue whale's, which has been weighed at about 400 pounds (and it is not the size of a small car, contrary to popular belief).
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