One of the best-known facts in biology is that, in sexual species like ours, to generate a new living being, a female and a male gamete are necessary. That is, an egg and a sperm. The theory is simple: during fertilization, the sperm penetrates the egg or oocyte and activates it. The oocyte is the one that […]… Learn more.

It would be quite appropriate for a college professor to assume students know that a tree is alive and a rock is not. Or would it? For several summers, I have had the pleasure of teaching biology to Tibetan Buddh… Learn more.