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Who can resist
dolphins? They're smart, and they always have that mysterious smile.
But they're wild animals - possibly friendly,
potentially dangerous, and only a few people get a chance to see them in
the wild.
Dolphins are rarely found
alone. They rest, socialize, travel and play in groups.
Dolphins form friendships
that can last a lifetime, cooperate to hunt for food, and care for their
young. In dolphin society, the strongest and longest lasting bond is
between a mother and her baby, called a calf. A calf will remain
with its mom, and feed on her milk for about three to five years.
Dolphins can see well at a
distance both under and above the water. Dolphins have a special
ability that they share with bats, called echolocation. A dolphin
sends out a narrow sound beam that meets objects as it travels, the
objects reflect the beam back at the dolphin, giving the animal
information about its surroundings.
During the daytime groups of
spinner dolphins rest in shallow bays, swimming slowly over the sea floor.
Spinner dolphins are nocturnal, becoming active in the afternoon and
joining up for an evening's hunt.
Dolphins squawk, whistle and
click at one another. They do not always move their mouths when they
make sounds. In fact, whistles and clicks - the sounds they make most
often - come from their foreheads or melon. The melon is filled with a
fatty mass that is sometimes called acoustic fat. Dolphins hear sounds
in an unusual way too. Sounds vibrate through their lower jawbone, are
carried to the fatty fluid inside this jawbone, and finally reach the ear
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