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1990-04-23
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DUGONG
Pushed by the strong, waving
motion of its tail and body, the
torpedo-shaped dugong swims
gracefully through the water. This
huge animal--measuring about 9 feet
(274 cm) long and weighing almost
600 pounds (272 kg)--lives in warm,
coastal seas from Africa to
Australia. It spends most of its
time eating, and sea grasses are its
main food.
A dugong feeds alone or in a %F,10,g\herd%herd,
day or night. It nibbles on
underwater sea grasses. Using its
flat, hairy snout, it roots for
plants anchored on the bottom. It
grasps the food with its coarsely
bristled lips. Then it gives the
plants a powerful shake that cleans
off clinging grains of sand.
Sometimes a dugong uses its
%F,10,g\flipper%flippers to scratch its face, to rub
its gums, or to guide a young calf.
A dugong looks and acts much like
its relative, the manatee. But its
flat tail has a notch in the center,
like a whale's tail. The manatee's
tail is rounded. Dugongs and
manatees also live in different
parts of the world. Read about
manatees under their own heading.
Like all %F,10,h\mammal%mammals, dugongs breathe
air. They surface to take a breath
every few minutes. But they can stay
submerged for about six minutes.
For centuries, these marine
mammals have been hunted for their
skin, oil, and meat. Yet scientists
do not know much about their habits.
Today many countries have laws to
protect the %F,10,g\endanger%endangered dugong.