Mastoid
stirrup
The number varies by about seventeen.
The knee cap (patella) is the only bone that is fully developed at birth. All other bones continue to grow and ossify as a child grows.
She sprang not only fully grown, but fully armed from the head of Zeus
I think Periodic Cicadas must be on the list; they only live a couple of days, and they spend most of that time looking for mates.
The only organ fully developed at birth in the human body is the brain.
The size of an animal when fully grown varies greatly depending on the species. For example, elephants can grow to be over 10 feet tall and weigh several tons, while a fully grown bee might only be a few centimeters long. It is best to specify the animal in question for a more accurate answer.
Vision
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.
It's fully grown. Guinea Pigs only grow to a certain mature size.
The Giant Rodent Skunk can weigh about 100lbs fully grown, which the Tree Ghram Skunk weights only about 10lbs as an adult.
No, the human ear is not fully developed at birth. The structures of the inner ear continue to mature and develop after birth, with some aspects of hearing and auditory processing taking several years to fully develop.