Usually the mother chooses the name and the people in the room with her might participate in helping her choose a name.
The parents should agree on a name but anyone can suggest a name.
A newly born snake is called a Snakelet Neonate while a newly hatched snake is called a hatchling
polywog
Snakelet, neonate (a newly-born snake), hatchling (a newly-hatched snake)
Whatever name its mama gives it! Wooh!
A bull calf.
"Baby I'm Yours"
There is nothing offensive or inflammatory about the name so don't worry just be happy.
A newly hatched cockroach is called a nymph.
A newly born or hatched fish is a fry.
If a woman gives birth and has not yet selected a name for her child, the hospital will enter the baby's name as, "Baby Girl" or "Baby Boy," as well as the mother's last name.
There is no particular name for a baby tuatara. Newly hatched tuatara are called hatchlings, and tuatara that are not yet adult are simply called juvenile tuatara.