Summary:

Creatures identical to humans, with elves being differentiated by their pointy ears, unnaturally clear skin, and towering height, and dwarfs by their naturally bulging muscles, facial hair (even the females yes), and small stature.

Reproduction:

They reproduce just like humans, but unlike human babies who spend 9 months in the womb and come out basically defenseless and blind, both elves and dwarf babies come out already able to crawl, see and punch, and in the case of dwarfs, the babies will begin growing facial hair a few days after being born.

Like most of Fauna's creations, they're compatible with humans, and can create and hybrid offspring with them, but unlike many other hybrids, such offspring will be able to conceive children of their own, with elves, dwarfs, humans, and other hybrids between the three species, as dwarfs and elves can too, create fertile offspring between themselves.

Biology/Life Cycle:

Their biology is no different from a normal human's, although they take almost four times as long to reach adulthood and develop the ability to conceive, but they also live four times as long as the average human.

This does not impair their psychological development, however, and by the age of 20, they're ready to enter the workforce, even if they still look like little kids. But they can only own property, get married, drink, and drive by the age of 80.

Additional facts:

According to myths, dwarfs and elves were the first of Fauna's successful creations. They were Fauna's first steps in creating something new, instead of a clone of something that already existed.

Fauna taught them about the various cultures and languages in Critonk, so once they were allowed to out for themselves on the planet, their similarity to the local humans and the knowledge about them, allowed them to integrate seamlessly into their societies. They ended up adopting their cultures and religion even, and the angels accepted them as if they were just another ethnicity.

According to myth, Fauna did not like the idea of his creations not only idolizing the angels, who never did anything but order the humans around, but just joined the humans, instead of building a home for themselves, and showed this displeasure loud and clear to his next creations.

Because hybrids between humans, elves, and dwarfs are fertile, many suggested that they should be considered their own species in the registries, rather than just hybrids, while some proclaimed that these hybrids being fertile were proof that dwarfs and levels were not different species, and they and humans weren’t different species either. They claimed that dwarfs and elves are, in fact, "just weird humans". This theory did not sit well with any of the three parties, and so anyone who tries to prove it or defend it is branded as a fool.

Personal experience:

Unlike other Fauna’s creations, neither dwarfs nor elves have their own kingdom or land, so finding them among human society was hard, to say the least. But I found an elf working at a bar and she allowed me a few questions after tipping her generously, and met a dwarf during a visit to a museum and although he was noticeably creeped out when I approached him, he agreed to answer a few questions over coffee.

Both experiences were rather underwhelming, not that they were bad people or anything, they were just normal.