Although the blue whale holds the record for the largest heart of any creature on the planet, its heart consists of a mere 0.12 percent of its entire body mass. Most animals — including humans — have a heart-to-body ratio 0.6 percent. The undisputed champion in this category should not be surprising. Man’s best friend, the dog, has the largest heart-to-body ratio in the animal kingdom. The canine’s overflowing, love-giving heart makes up 0.8 percent of its body.
It should also come as no surprise that the heart-to-body mass ratio for the household cat comes in at 0.35 percent.
Read more fun facts about dogs.
Read more fun facts about cats.
Read more fun facts about hearts.
Categories: Accomplishments and Records, Animals, Biology, Nature
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