I have been learning about dinosaurs this year (part of a uni paper) and a strange thought struck me while watching a doco last week.
Firstly some terminology:
Precocial young: able to run around and feed themselves (eg ducklings)
Altricial young: very underdeveloped, blind etc (blackbird babies etc)
They have fossils of dinosaur nests with eggshells and babies too big to fit inside the nest, strongly suggesting that the parent feed the nestlings, like birds (who are actually dinosaurs).
ONLY altricial juveniles recieve this sort of parental support. Precocial ones might be kept warm by the parents, but they run around all over the show and tend to leave the nest after hatching.
WTF does an altricial reptile look like?! - We are talking weak, blind, virtually foetal, like a baby bird!!
Are there any surviving reptiles with altricial young?