Breeding of strawberries in water where other fish would freeze to death but, with a special gene that allows it to produce a sort of anti-freeze, it can survive. This gene is put into a bacteria that is sprayed on the strawberry during the freezing temperatures, allowing it to also be resistant to cold. The strawberry is then cleaned, removing the bacteria. Breeding of strawberries The breeding of strawberries is a long story that starts with the selection and cultivation of European strawberry species in western Europe in the 15th century while a similar discovery and cultivation occurred in Chile. The most commonly
Cooperative breeding kinship of the litters they are rearing. Cooperative breeding has been described in several canid species including red wolves, Arctic foxes and Ethiopian wolves. Cooperative breeding entails one or more individuals, usually females, acting as "helpers" to one or a few dominant female breeders, usually helpers' kin. This sociosexual system is rare in primates, so far demonstrated among Neotropical callitricids, including marmosets and tamarins. Cooperative breeding requires "repression" of helpers' reproduction, by pheromones emitted by a breeder, by coercion, or by self-restraint. Sarah Blaffer Hrdy believes that cooperative breeding is an ancestral trait in humans, a controversial proposition. Cooperative breeding