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Yes, all dolphins are mammals because they meet the five requirements of mammals:
- All mammals have a backbone (vertebrates)
Dolphins have a backbone
- All mammals have hair at one point in their life
Dolphins have a mustache when they are born
- All mammals breathe air
Dolphins must surface periodically to breathe
- All mammals produce milk to feed their young
A female dolphin's mammary glands are located on either side of the genital slit
- All mammals are warm blooded
Dolphins generate their own heat
This is a general fact - no one ever really "found this out." But among the earliest investigations on the relationship between land mammals and sea mammals were those of Aristotle (384-322 BC) in ancient Greece.
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Are pink river dolphins mammals?
Yes, all dolphins are mammals.
Are bottlenose dolphins mammals or reptiles?
MammalLike all dolphins, Bottle Nose Dolphins are mammals.
Are amazon pink river dolphins mammals?
Yes, all dolphins are mammals.
Are dolphins cold blooded creatures?
Dolphins are mammals, and all mammals are in fact warm-blooded.
Are dolphines mammals or reptiles?
MammalLike all dolphins, Bottle Nose Dolphins are mammals.
Why do dolphins have bellybuttons?
Dolphins are placental mammals. All placental mammals have bellybuttons of some kind.
How are dolphins young are made?
Dolphins are mammals so they reproduce the same way all mammals do.
Are dolphins a mammal?
Yes, dolphins are mammals. Just like us. They do not have gills like fish, and have to come to the surface to breathe. They have live babies. They have fuzz on the top of their beak when they are babies, but it comes off as they grow.
Are dolphins found in Alaska?
No since dolphins are ocean dwelling mammals and Alaska is a landmass
Are all sea animals mammals?
No, all sea animals are not mammals. Fishes are not mammals, but dolphins are mammals.
What sea mammals are found in the North American waters?
North American seal, dolphins, blue whale, humpback whale... many sea mammals that are found all around the world.
Are pink dolphins warm blooded?
All species of dolphins are warm blooded, as they are aquatic mammals.
