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Unlike
fish, Dolphins are mammals and use lungs to
breath instead of gills. Like other mammals
they give birth as opposed to laying eggs but
unlike other mammels they do not have hair on
their bodies. They don't have body hair because
they need to swim as fast as they can to catch
fish, their main source of food. They also need
to be able to evade their predetors, like the
evil sharks found in the ocean. Dolphins also
eat squid.
The name Dolphin refers to the
species that have a beaklike snout and slender,
streamlined body, which has developed over millions
of years through evolution to enable them to
swim at high speeds. Unlike our skin, the Dolphins'
skin made of live cells, unlike our dead skin
and because of this they have no protection
from bumps or bruises.
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Dolphins
do not have good eyes and need their echolocation
to navigate, find food and communicate. Echolocation
is a technique that dolphins use to 'see' what
is ahead of them by the use of sounds. These
sounds are released at a rate of about 300 sounds
a second. Their squeals, that are used by dolphins
are for communication and as a way of indicating
their emotional states. Their brains are larger
then ours.
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