Whales & dolphins

Whales & dolphins

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The Cycle of Life After a gestation period of over a year, the female grey whale gives birth to a calf weighing 500 kg (1100 lb) and ... Cetaceans are unusual in that the size of the offspring at birth is determined not by variations in the length of the ... Because cetaceans do not have flexible lips, the calf cannot suckle in the same way as terrestrial mammals. ... stays close to its mother, consuming, in the case of the larger baleen whales, over 100 litres (22 gallons) - and perhaps as much as.

Title:Whales & dolphins
Author:John Birdsall
Publisher:Parragon Publishing - 1999-10-21


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