Tiny kittens
1 day old and the curls are already showing, it happens however that some kittens are born with straight (what would be known as “regular cat hair”. When this happens it is common to put a “BS” (Born Straight) in their pedigree. (as opposed to “BC”, meaning born curly).
It is not uncommon for kittens to shed their fur completely only to regain it permanently.
If you look closely it is evident that one kitten (the torbie girl) was born BS.
On a sidenote: The eyes of kittens are sensitive and so they should not be put in bright light; the photos here have been intentionally overexposed (using a slower shutter speed and a high ISO).
1 day old LaPerm kitten
The distinct curls of the breed can already be noticed in the slight curl on the kittens forehead and the curled whiskers.
Newborn LaPerm kitten
The curls are already distinguishable.