Can humans be physically modified to be amphibians?

Question

Can humans be physically modified to be amphibians?

Answer 1

No, not yet

Answer 2

No.  All members of Amphibia are descendants of a common ancestor not shared with mammals.  The class is a result of descent, and that ancestry is the only valid membership card.

Answer 3

No.

Humans are mammals. We have hair, we maintain our own temperature, we produce milk.

Amphibians breathe through their skin, do not maintain their own body temperature, and go through a process of metamorphosis – from tadpole to adult form.

I don't care how much a human sperm resembles a tadpole, you are NOT going to turn into a frog when you grow up.