Koalasare fully grownby their third or fourth year.
they get big as a big ball
The emperor penguin can grow up to be 20 years old.
no. a maltese is fully grown at one year of age
AGE 7!
A marmoset monkey is fully grown at 15 months of age. They are already sexually mature at this age but are unable to breed until they are dominant.
How would you know it wasn't fully grown? It is most likely that it will not get noticeably larger.
ida
There are no snake species that I know of that are fully grown at 18 months. Some males may become sexually mature at that age, but they still have a few years or more of growth ahead of them and are not physically mature.
They're fully grown at around 8 months of age, or up to one year of age, but they are only considered to really be an adult dog when they are two years of age.
She's immortal and was born fully grown.
about 9 months
at the age around 2