2. A family of toothed whales.
Includes about 34 species.
They are between 2 and 9 meters long.
The coloration of the skin is in shades of gray
(lighter on the belly and darker on the back),
combined with lines and spots.
Strict carnivores.
3. Large head
Long snout
Single blowhole on top of the head.
The caudal fin is used for propulsion.
Pectoral fins are used for the direction
of swimming.
4. They are among the most intelligent species on
the planet. They are relatively close to the
coast and often interact with humans.
They use the sounds, dances and jumps to
communicate, navigate and reach their food.
5. HUMAN THREATS
Environmental pollution of the oceans, seas and rivers is a
concern. Pesticides, heavy metals, plastics and other
industrial and agricultural wastes, can cause reduced
dolphin populations.
Injuries or deaths caused by ship strikes are also common.
Various fishing methods kill dolphins being caught in the
nets.
In some parts of the world, such as Taiji (Japan) and the
Faroe Islands, dolphins are traditionally considered as
food.
