6. Dolphins communicate with
each other by clicking,
whistling and other sounds
they use echolocation to
find prey
and often hunt together by
surrounding a school of fish
7. Dolphins are considered to
be amongst the most
intelligent of animals. They
are friendly and extremely
playful. They are also easy
to train.
8. Bottlenose dolphins are the
most common and well
known type of dolphin.
The killer whale (also
known as orca) is actually a
type of dolphin.
9. Most dolphin species have a
long lifespan. It is estimated
that some may have lived
for more than 100 years.
10. Dolphins are at risk because
the oceans are being
polluted. They are also
losing their habitats and
many countries still allow
dolphins to be hunted.