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How does a human’s heartbeat compare with those of other mammals?
Mammals
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The saying “blind as a bat” is not true. Although bats rely on sound to navigate and find food, they have all the elements found in a normal mammalian eye and they do see.
| Mammal | Resting Heart Rate (beats per minute) |
| Human | 75 |
| Horse | 48 |
| Cow | 45–60 |
| Dog | 90–100 |
| Cat | 110–140 |
| Rat | 360 |
| Mouse | 498 |