The rise of the commercial space industry has experts asking how humans may one day be able to have sex in space. A doctor and astronaut revealed the strange and silly ways this might work.
Some animals can coexist peacefully while exploiting the same territory. While cats are an intriguing case in point, there are many other examples of negotiated compromise.
Jan. 2, 2025 — Biologists have revealed genetics behind the alternating sexes of walnut trees. The research reveals a mechanism that has been stable in walnuts and their ancestors going back 40 ...
Jerome, Letters 22:13 (A.D. 396). "You [Manicheans] make your auditors adulterers of their wives when they take care lest the women with whom they copulate conceive. They take wives according to ...