These are the dissected gonads of an animal that has two testes, two ovaries, another large testis, more ovaries, which is not normal ... (Laughter) even for amphibians.

And the frogs that are exposed to atrazine, the testes are full of holes and spaces, because the hormone imbalance, instead of allowing sperm to be generated, such as in the testis here, the testicular tubules end up empty and fertility goes down by as much as 50 percent.

Difference human/Neanderthal is sperm and testis, smell and skin.

Testis in sentence

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