Reminds me of orangutans, too [1]: > Males mature at around 15 years of age, by which time they have fully descended testicles and can reproduce. However, they

Reminds me of orangutans, too [1]: > Males mature at around 15 years of age, by which time they have fully descended testicles and can reproduce. However, they exhibit arrested development by not developing the distinctive cheek pads, pronounced throat pouches, long fur, or long-calls until they are between 15 and 20 years old. The development of these characteristics depends largely on the absence of a resident male. [1] https://en.m.wikipedia.org/wiki/Orangutan https://en.m.wikipedia.org/wiki/Orangutan