Hatchling

I don't know what has become of the hatchling.

Flavio said the alien was just a hatchling.

The hatchling alligator had just broken out of its shell but was already trying to follow its mother, who hunted hatchling birds.

Hatchling nautiluses emerge, after nearly a year's gestation, as miniature adults and then immediately start swimming around, searching for food in the depths.