In January of 2018, a female crocodile living alone in a Costa Rican zoo laid a clutch of eggs, and one of them continued to mature in an incubator, yielding a stillborn
They’re the unique peculiar couple: One is huge, round and unmoving. The opposite is tiny, has a tail and not stops swimming. But the union of egg and sperm is significant for
A new study highlights a potential alternative to surgery for controlling stray cat populations. The method uses gene therapy to deliver a contraceptive shot that interferes with egg follicle development in the