Hey Nonnie!
Again, LOTS is known about Elves – Tolkien loved his Elves OH SO VERY MUCH, after all!
Here’s a good run-down on Elven aging and the life-cycle of an Elf 🙂
Summarised, though, it goes like this:
– Elves have a gestation period of around 1 year.
– They celebrate their conception day, rather than their birthday (which must raise awkward questions for their parents, I assume…)
– They look around 7 years old (compared to a human child) when they are in fact 20 years old.
– Their minds, however, develop VERY quickly. So, we’re talking childlike geniuses here, I suppose?
– Puberty is anywhere between 50-100.
– They have however reached adult height at 50, so I assume their puberty is mostly filling-out/broadening etc.
– They’re an adult at 100.
– They live forever, huzzah! Unless killed/heartbroken/silmarils.
– They appear to have ‘cycles of life’ – it’s unclear what is meant by this, but it is said that in an Elf’s third cycle of life, they can grow a beard. (HEY CIRDAN, NICE FACIAL FUZZ)