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Dolphins
tend to live for about twenty years, but some
have been known to live for about forty years
When dolphins sleep, they sleep in a semi-alert
state by resting one side of their brain at
a time If need be, dolphins can hold their breath
for 5-8 minutes at a time Dolphins can dive
as deep as 200m (that's 650ft).
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A
dolphin sheds its outer layer of skin every
two hours Dolphins will help sick or injured
dolphins as much as they can Dolphins work as
a team if danger is near by. Every dolphin has
its own signature whistle to distinguish itself
from its companions, it's like us using names.
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