Dolphin Fact Sheet

The scientific order, called cetacean, includes dolphins, cetacean and porpoises. The dolphin family Delphinidae has 36 species. Some members of the dolphin family have the word whale in their common name, including the largest dolphin, The finisher whale.

Size and weight:

Dolphins vary in size and weight depending on the species. The largest dolphin is the finisher whale (Oscines Orca), which can be up to 23 feet long and weigh up to 4.5 tons. The smallest dolphin is the heavy dolphin (Cephalorhynchus heavisidii), which is usually about 3.5 feet long and weighs about 88 pounds.


Dolphins vary in color depending on the species, from white, mother-of-pearl and pink to darker browns, gray, sapphire and black. They have smooth skin, fins and a dorsal fin.

They have a long, thin muzzle with about 100 teeth and a streamlined body. You have a single vent on the top of your head that has a flap that opens to reveal a pair of nostrils. The dolphin uses these nostrils to breathe when it appears.

On each side of their head, dolphins have one eye. The two eyes move independently of each other, allowing the dolphins to see in front, to the side and behind them. You can see well above and below the water.

Dolphins have tiny holes in their ears, about the size of a pencil tip. However, dolphins may have the best hearing in the animal kingdom.

Diet plan:

The diet of most dolphins consists of squid, squid, fish and shrimp. Like finisher cetacean, bottlenose dolphins eat small mammals such as seals, penguins, birds, small cetacean and small walruses.

Dolphins work together to feed and can gather schools of fish to feed in groups. Some species of dolphins even use their rattles to pick up fish.


Dolphins live in various oceanic habitats, from the ocean to the coasts and far away in the seas.


Dolphins can be found in all the oceans of the world.


The gestation period of dolphins is usually 10 to 12 months in most species. Females usually give birth to one newborn at a time, which can weigh between 10 and 400 pounds at birth, depending on the species.

Social Structure:

Dolphins are social animals and are often found in groups called “pods”.”Dolphins live and play in schools with five to hundreds of animals. Some species can swim and roll in Formation, such as synchronous swimmers.

Dolphins communicate by clicking for echolocation, and many use whistles or clicks to communicate with other members of the group. Researchers studying bottlenose dolphins (Tursiops truncatus) believe that slow clicks and high-pitched whistles are signs of satisfaction, while hard and soft cries express anger.

The pods will work together to treat the sick or the young. For example, you can alternately help push young or health-issued people to the surface so that they breathe. Groups of dolphins strike an intruder in a group and can even finish a large shark by ramming it in a group.

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