Gray Whale - oldest species of mammals on earth

Gray WhaleThe Gray Whale (Eschrichtius robustus) can reach 15 meters in length, weighing about 36 tons and can become 60 years of age and has been estimated to being on earth for 30 million years, making it the oldest species of mammals! There are two populations of Gray Whales in the world, the third, the North Atlantic population was hunted to extinction in the 18th century. It is believed it was hunted In the remote past by Megalodon, a giant shark, which had jaws over 2 meter wide...

Keywords: gray , migrate , white

The Devil fish, gray back, gray whale, grey whale, hard head, mussel digger, rip sack is listed as Conservation Dependent (LR/cd), the focus of a continuing taxon-specific or habitat-specific conservation programme targeted towards the taxon in question, the cessation of which would result in the taxon qualifying for one of the threatened categories below within a period of five years, on the IUCN Red List of Threatened Species

Namings for the gray whale
A young / baby of a gray whale is called a 'calf'. The females are called 'cow' and males 'bull'. A gray whale group is called a 'gam, pod or herd'.
Some facts about the
Gray whale

Adult weight : 28500 kg (62700 lbs)

Maximum longevity : 77 years

Female maturity :2922 days

Male maturity : 2922 days

Gestation : 395 days

Weaning : 180 days

Litter size : 1

Litters per year : 1

Interval between litters : 730 days

Weight at birth : 500 kg (1100 lbs)

Source: AnAge, licensed under CC

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