1.
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A
dolphin is not a fish. Dolphins are from an order of
that
lived
on land millions of years ago. Most dolphins have only one
on
top
of their bodies-some dolphins have none. Fish, on the other hand have
more than one fin, and some even have four. Fish are covered with
thin,hard overlapping
that protect their soft bodies. Dolphins are
covered with smooth and delicate skin.
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Both,
fish and dolphins, need oxygen to live. Fish get oxygen from
the water
that flows through their
. Dolphins come up to the surface of
the
water and breathe air through the
.
Fish lay eggs, many at once. Most often, when eggs
, tha baby
fish
are on their own right away. Dolphin babies are born one at a time,
live from the mother dolphin's body. The baby dolphin drinks milk from
its mother just as other mammals do.
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2.
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