Information
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.
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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