DOLPHIN FACTS
This information is designed to help you learn more about our aquatic neighbors. We hope
that the knowledge will lead you to an increased appreciation for these wonderful creatures.

Dolphins are not only fun to watch, they are an important part of a complex ecosystem
and as an indicator species, the dolphins are a barometer of the health of our seas.
Providing a safe place for them to live should be a main goal for us all.
Some basic facts: Dolphins are mammals. They are warm blooded, breathe air, give live
birth to babies - they are not fish. There are approximately 57 species, most of which have
an elongated beak called a rostrum.
Dolphins are Cetaceans and belong to a group of the
toothed whales called Odontocetes. They live in both fresh/salt temperate and tropical
waters worldwide.
The largest of all dolphins is the Orca, or Killer Whale,
the oceans' most powerful and fiercest creature.
Female dolphins become reproductively active at the age of 10-13 years and the males
between 12-14 years. Female dolphins pregnancies last a year. They give birth to a
single calf weighing 25-40 pounds and 24-36 inches long. They nurse for the first
two years meanwhile the calf feeds exclusively on its' mother's milk. The babies remain
with their mothers for the first 5-8 years, learning social and feeding skills from their
family groups. Female dolphins usually rejoin their mother's pod while male dolphins remain
with other males, often forming lifelong cooperative coalitions. Juvenile dolphins of both
sexes frequently leave the pods for extended periods of time.
Dolphins have a special sense called echo location which is used for navigation and to
find food. Echo location involves making sounds in the sinus cavities. The sound is
focused by an oil-filled sac on the dolphin's forehead, and then projected toward
objects in the water. When the sound strike any object it is then reflected back
to the dolphin's lower jaw, where it is passed to the dolphin's brain. The animal
can then form sound pictures based on the difference between the density of the
object and the density of the water.
Dolphins have good eyesight but limited colour vision. Their eyes are designed
for seeing in low light conditions, both in the air and in the water. They have an
excellent sense of taste but no sense of smell.