Breathing & Moving
A single blowhole in the top of the head identifies
dolphins as toothed whales. The blowhole closes when a
dolphin is underwater and opens when it comes to the
surface to breathe. The animals need to breathe air at
regular intervals. They must surface a couple of times
every minute or so depending on how fast they are
swimming.
Dolphins leap into the air as they swim along.
This is so they can take a breath without slowing
down.
They can keep going at speeds of up to nineteen
miles an hour.
A dolphin moves the lower part of its body, which
includes the tail, in an up and down motion.
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