Dec 24, 2009
Humans have the smallest breath-holding capacity of all mammals.
| Mammal | Average time in minutes |
| Human | 1 |
| Polar bear | 1.5 |
| Sea otter | 5 |
| Platypus | 10 |
| Muskrat | 12 |
| Hippopotamus | 15 |
| Sea cow | 16 |
| Beaver | 20 |
| Porpoise | 15 |
| Seal | 15-28 |
| Greenland whale | 60 |
| Sperm whale | 90 |
| Bottlenose whale | 120 |
Source: Taber, Robert. 1001 Questions Answered...
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