Dolphins and Porpoises

depending on the type of dolphin,

a bottlenosed dolphin tends to feed on smaller fish than them

also a spotted dolphin, atlatic dolphin, spinner dolphin ext,

but a orca (killer whale) is a dolphin that feeds on other dolphins such as those listed abover or larger marine animals.

it isn't extinct, im joyed to say that there are still 25 among us

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i personally could stay for 30 secs.

The evidence that supports the hypothesis that whales evolved from land-dwelling mammals includes the sinonyx. This is a wolf sized mammal that is believed to be a transition between the land animal and the ocean whale.

There are indeed dolphins around Goa, mainly the Indo-Pacific Humpback Dolphin

The study of whales is called cetology according to dictionary.com: cetology: the branch of zoology dealing with whales and dolphins

They vary by species, with Haviside's Dolphin only about 4 feet long, Bottlenose dolphins between 6 and 13 feet (2 to 4 meters), and the much large orcas (killer whales) up to 32 feet long.
Dolphins vary in length by species, from about 1.2 meters to as long as 4 meters (4 to 13 feet). The related species, called killer whales or orcas, are much larger.

it often eats every twice a day

the bottlenose dolphins are friendly, playful and fun to be around. They are very good with humans and are very gentle creatures.

In the oceans like Atlantic, Pacific, Iandian, and Arctic ocean. In the oceans like Atlantic, Pacific, Iandian, and Arctic ocean.

Chordata.

Dolphins do not have a shelter in the ocean. They only swim for all of their lives and do not need a shelter.

they use SONAR. :)

An average dolphin eats about 2-4% of their body weight each day. An adult male typically eats about 20 pounds of fish, while a nursing mother can eat upwards of 40 pounds of fish daily! Although it is not uncommon for bottle nose dolphin calves to nurse for up to 4 years, they usually begin to supplement their diet with fish at approximately 6 months of age. A dolphin's caloric needs vary based on age, season, reproductive status, changes in water temperature, and activity level

Maui's dolphin, a subspecies of Hector's dolphin, is the world's rarest dolphin according to Wikipedia.

There are only 55 adult Maui's dolphins, and they live off the west coast of New Zealand's north island.

haha good question....I have a fish myself and he seems to never sleep! But every now and then I will catch him in the corner of his tank moving back and forth slightly but remains in the same spot, this means that they are sleeping. Fish are never completley still when they sleep, and never close their eyes (if they even have eyelids....D: ) hahaha this is just a survival technique for them.....hope this helped :)

A bottle-nose dolphin's average life span is 20 years or less.

The age is estimated by examining a sliced section of a tooth and counting the layers.

The oldest dolphin recorded is Nellie from Marineland, Florida. She has reached her 56th birthday as of February 2009. Animals in captivity get better healthcare and therefore live longer.

The female dolphin first gives live birth to the child, then the baby dolphin stays with their parents till they are old enough, then the dolphin grows up and makes her own family and gives live birth to a baby dolphin and then the old ones die. so the life cycle continuous

I think it is a dolphin. Dolphins are known to go 25 miles an hour.

Dolphins have lungs, no gills.

Despite being shaped like fish, and live in the ocean, dolphins are mammals. They breathe pretty much like you and I.

they act active make funsounds and jump around

Hourglass Dolphins live in the icy Southern Sea. Unlike many of the other dolphin species that do not go above Scotland or below the Falkland Islands, they bodies adapt to the cold sea. You can't see them above the Falkland Islands. They are one of the very unknown species of dolphin.