In oviparous biology, a hatchling is a newly hatched fish, amphibian, reptile, or bird. A group of mammals called monotremes lay eggs, and their young are hatchlings as well. From Wikipedia
Four Western Santa Cruz Galapagos tortoise hatchlings, born to 97-year-old first-time mother Mommy, mark a conservation milestone and the zoo's first successful breeding of the species.
