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The unique features of animals are:

Eukaryotic

Multicellular Heterotrophic

Motile

Embryos

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14y ago
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12y ago

They have fur and fee their young milk. Humans are mammals.

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12y ago

Hair and milk. Not warmbloodedness, birds have that as well. Also not live birth - the platypus and echidna still lay eggs!

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10y ago

One of a mammal's unique feature is the ability to produce milk for their young.

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12y ago

the presence of hair

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Q: What are the two hallmarks of mammals?
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