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A vertebrae is a life form with a spine. Humans are vertebraes as are all mammals, monotremes and amphibians..however not all of these give birth to live young, monotremes are mammals that lay eggs (there are only 2, platypus and echidna)...except for these, all other mammals give birth to live young. Some amphibians give birth to live young, but amphibians mostly lay eggs.

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13y ago

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