Biodiversity: The tale of the ‘un-extinct’ fish
A Mexican fish species has been “brought back from extinction” after a decades-long rescue mission. …
In preparation for the reintroduction, 40 males and 40 females from the colony were released into large, artificial ponds at the university, essentially training the captive-reared fish to a wild setting with fluctuating food resources, potential competitors, parasites, and predators. After four years, this population was estimated to have increased to 10,000 individuals and became the source for the reintroduction to the wild.