3. sharks
The mighty shark is often mistakenly thought of as
the most voracious predator of the seas, and even
has a reputation as a ferocious man-eater,
something that sadly has been hugely exaggerated
by the media.
4. The acrobatic dolphin is the most common
small cetacean in many tropical open seas, where
it can be seen spinning high in the air.
5. • The blue whale is the largest animal to have ever
lived!
• The heart of the blue whale is the size of a small
car and can weigh up to 900 kg!