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Dolphins and Porpoises

Considered not a fish, dolphins and porpoises belong to the group of toothed whales that have skin, not scales. The significant difference between them is that dolphins have a beak, a melon-shaped head and a dorsal, while porpoises have none.

3,460 Questions

How much does a baby dolphin weigh at birth?

50kg thre are very heavy for a baby iam 37 and i way that much ( i am not anarexic by the way)

Are baby dolphins born head first or tail first?

Dolphins are born tail first because.......they might die before they got to the surface to breathe!! They are mammals like us, and do not have gills.

Are there whales with spots?

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What bodies of water do dolphins live in?

All of the oceans and in some Chinese rivers and the amazon

What is more faster a shark or a dolphin?

A sailfish reaching speeds of 68 mph how evere still slower than a cheetah reaching speeds between 70 to 75 mph

Are a pack of dolphins called a school of fish?

Neither are wrong terms for describing multiple dolphins. Multiple terms have been thrown around for both dolphins and whales, trying to emphasize the fact that they aren't fish, but none have ever been selected as the official term.

Why does a fish swim faster than jellyfish?

Not all fish swim faster than jellyfish. Seahorses are limited in their swimming capabilities and male angler fish attach themselves to a female and become a parasitic sex organ, never to swim again.

Those fish that can outswim a jellyfish can do so because they have a more efficient propulsion strategy, stronger musculature, a more sensitive sensory system and are more streamlined than a jellyfish.

A fish classified as a nekton?

A Nekton is a grouping of living organisms that live in the water column of the ocean and freshwater lakes. So, it could be anything from microscopic organisms, to a shark, to a whale, a trout or bass etc. Thus, fish are included within this classification.

What was the largest dinosaur meat eater?

The largest carnivore found so far is a mystery. Although Tyrannosaurus is the smartest, strongest and quickest of all large carnivorous dinosaurs, it wasn't the largest. Some dinosaur experts say Giganotosaurus is the biggest of all flesh-eating dinosaurs. Others think Mapusaurus is the biggest. Recent discoveries show that the North American Saurophagonax is the worlds biggest dinosaurium carnivore. Most people agree that Spinosaurus holds the new record

Why is a shark like a dolphin but not like a fish?

a dolphin can only swim up and down because its muscle structure and it spine are designed that way, if a dolphin were to swim side to side the muscle near its tail would swell damaging the spine if a shark or fish were to swim like a dolphin the same thing would happen eventually resulting in death.

How many dolphins are in captivity?

There is no number about how many dolphins are in captivity. There could be thousands around the world and 1 dying every minute. But the thing is you cant get a proper answer.

How do dolphins use sound?

Sound travels several times as fast in water as it does in air. That gives the dophins a quicker echo from its subject, with less chance that the prey may have moved since being detected by sound. Sound waves are louder and they travel farther under water, allowing whales to communicate over longer distances.

What ocean does the dolphin in habit?

There are about 36-38 types of saltwater dolphins and 4-7 river dolphins. Certain whales are also the cousin of the dolphins. But the saltwater dolphins, AKA the ones you are asking about, inhabit basically EVERY ocean! hope this help :)

Do dolphins live in the intertidal zone of the ocean?

There are about 40 species of dolphins known to exist in Earth's oceans and fresh water rivers. I know for sure the live in the Caribbean and near Hawaii, but I'm not sure of many other places.

How many days is a dolphin in the womb?

The gestation period of the smaller dolphins is 11 or 12 months.

Why do mammals use echolocation?

Most mammals do not have the ability to use echolocation. The mammals that do are bats and dolphins. They use it to navigate and locate prey even when it is difficult to see (for bats, that is at night and in caves, and for dolphins, it is useful in the water when visibility is reduced.

Are porpoises and dolphins the same?

No, dolphins and whales are mammals

Whales are whales.

Porpoises are porpoises.

Fish are fish. Sharks are fish. Whale sharks are fish.

Dolphins are dolphins.

Killer whales are whales.

Who do dolphins compete with?

Well, if you were at Clearwater marine aquarium, they would swim with you!:)

Why is dolphin survival important?

The dolphin is adapted to a life in the sea. Equipped with pectoral fins for steering, a blowhole with a piece of skin to cover it underwater, and a tail fluke to propel the dolphin though the water it can quickly find food with its echolocation.

What is a dolphins body adaptations?

One is having a long nose, which helps them kill a shark.

Is a sordfish faster than a dolphin?

There are some species of sharks that can swim faster than dolphins (some sharks eat dolphins) but there are on the other fin, species of shark that dolphins are faster than.

Mako sharks for instance, do swim at bursts of speed of 50 miles per hour making makos the fastest animals in the ocean.

On average speed wise, between dolphins and sharks 50/50.

Hope this answers the question.

What are a Amazon River Pink Dolphin adaptations?

  • unfused vertabrae in its neck
  • "fins and fluke" -- instead of a dorsal fin, the boutu has a ridge on its back which rises to a modifies hump at about the mid section of its body. Its flippers are large in proportion to its body annd are used steering. Its flukes are large and broad and divided by a median notch. Its unusually large flippers and flukes are probably an adaptation for maneuvering in shallow waters.

Sources:

  • dolphins-world.com/Pink_River_Dolphins
  • acsonline.org/factpack/boto.htm