2. General Information
They are marine mammals closely related to
whales.
There are almost forty species of dolphin.
They vary in size from 1.2 m and 40 kg.
They are carnivores, eating mostly fish and
squid.
Dolphins are among the most intelligent
animals
3. Dolphins have a streamlined fusiform body.
Senses
Have acute eyesight.
They can hear frequencies ten times or more
above the upper limit of adult human hearing
Dolphin teeth are believed to function as
antennae.
Dolphin's sense of touch is also well-developed.
4. Interesting
Information
Dolphins communicate with
whistle-like sounds.
Dolphins occasionally leap above
the water surface, and
sometimes perform acrobatic
figures .
Dolphins sleep with only one
brain hemisphere in slow-wave
sleep.
