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Dolphines are mammals which are closely related to whales. They don't breathe like fish, that's why.

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Q: Is a dolphins a fish or a mammal and how do you know?
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Related questions

Can the dolphins be know as a fish?

No, it is a mammal


Are dolphins a type of fish or are they a mammal only?

dolphins are a type of fish


Is dolphins a fish or a mammal?

a dolphin is a marine mammal that lives in open water in the ocean.


Are bottlenose dolphins considered a fish or a mammal?

Definitely mammal, only idiots call them fish.


What kind of fish do dolphins look like?

Dolphins look like dolphins and why would they look like a fish when they are a mammal?


How do you know if a fish is a fish?

If the creature/animal has scales and a fin then it is a fish. Whales have smooth skin so it's a mammal. Dolphins have smooth skin so it's a mammal try asking him. i hear most fish are quite approachable.


Dolphin is a fish?

Dolphins are mammals.


What do sharks dolphins and whales have in common?

They're both marine animals though the dolphin is a mammal.


Are dolphins amphibians fish or mammals?

A dolphin is a (marine) mammal. I could see why you may have thought amphibian, however an amphibian is more of a frog/lizard species.


Why are dolphins not a fish?

dolphins are not a fish because fish are reptiles and dolphins are mamalsThe dolphin is not considered a fish because it is a mammal; Telltale signs of a mammal which the dolphin has but fish do not include:Giving birth to living young (not eggs that hatch)Nursing it's young with milk from mammary glands (breast feeding)Breathing air with lungs


What animal have a fins?

Some do. For example, dolphins and whales are marine mammals and they have fins.


Is a dolphin a fish an amphibian or a mammal explain?

Dolphins are mammals. They are warmblooded and produce milk to nurse their young .