How does the breath-holding capability of a human compare with other mammals?

Mammal	Average time in minutes
Human	1
Polar bear	1.5
Pearl diver (human)	2.5
Sea otter	5
Platypus	10
Muskrat	12
Hippopotamus	15
Sea cow	16
Beaver	20
Porpoise	15
Seal	15 to 28
Greenland whale	60
Sperm whale	90
Bottlenose whale	120

(The Handy Science Answer Book, compiled by the Science and Technology department of the Carnegie Library of Pittsburgh)