a kid, child, youngster, or toddler
another name for a young plant is an embryo
Young kangaroos are called joeys.
When a person is namedafter another or has the same name as another person we call him/her namesake. The origin is probably the idea of "a person named for the sake of another".
Seaman.
lad
a cub
Junior's in clothing.....
tot
Young tiger sharks are called pups.
an apprentice
An apprentice
Yes, it is very possible that there is another person in the world with the same full name as you.