The very first illustration of Hypsilophodon that I ever laid eyes on depicted it as a very lizard-like animal perched high on a tree branch, an erroneous notion that arose back in 1912 and persisted until 1971 when it was finally debunked—although that didn’t stop children’s dinosaur books from continuing to portray Hypsilophodon as arboreal until well into the 1980s.
All Hypsilophodon Reviews
Review: Mesozoic Creatures (Tamiya)
Review: Hypsilophodon family (CollectA)

4.1 (9 votes)
Hypsilophodon was a tasty little morsel for vacationing and local carnivorous animals during the early Cretaceous. It is believed the Hypsilophodon would have been very fast and nimble. Along with its small size; it was probably a hard catch for the predators, un-like many of us today, Cretaceous predators probably did not like the idea of fast food.