Did you know that Dolphins...
Unlike any other mammal, dolphin babies are born tail first!
Dolphins have very little sense of smell!
A mother dolphin will stay with a calf for two to three years!
Dolphins, like cows, have two stomachs — one for storing food and one for digesting it!
- The largest of the freshwater dolphins is the boto, found in the Amazon River. It can grow 10 feet long.
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They weigh from 6 to 12 pounds and can be up to 38 inches in length.
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 Order: Sirenia, Family: Trichechidae The Amazon Basin of Brazil, Colombia, Ecuador, Guyana and Peru.
The Amazon ox manatee is gray and bears a white patch on its chest or several white markings on its chest and abdomen. Its body is covered with fine hairs and its upper and lower lips are covered with thick bristles. It has two mammary glands near its armpits.
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 The manatee, often called the sea cow, is the only exclusively herbivorous marine mammal. It grazes on all kinds of aquatic plants, especially marine sea grasses, assisted by its large prehensile lips, which are studded with bristles.
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 Well, their brains, of course. Dolphins have large brains for their bodies — in fact, a bottlenose dolphin is second only to humans in the ratio of brain size to body size. Researchers have also pointed to the parallels in the organization of dolphin and primate brains as more evidence of high intelligence in dolphins. Some have gone so far as to suggest that dolphins actually have a language that...
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 Order: Carnivora, Family: Mustelidae Male sea otters average 5 feet and 70 pounds; females average 4 feet and 60 pounds.
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Sea Otters live in shallow coastal waters, especially kelp beds.
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 Order: Sirenia, Family: Trichechidae A large, grayish, nearly hairless, aquatic mammal without hind limbs; tail broadened into a horizontal, rounded paddle; front limbs paddlelike. Dental formula: I 2/2 (nonfunctional), C 0/0, Pm 0/0, M 6/6 (variable and continuously being replaced) X 2 = 32. Total length of adults, up to 3.5 m; weight, up to 1,000 kg.
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