 While some scientists have suggested that "Deinonychus" must therefore have been a pack hunter, this view has been challenged based on both a supposed lack of evidence for coordinated hunting (rather than mobbing behavior as in most modern birds and reptiles, though crocodilians have been documented to hunt cooperatively on occasion) as well as evidence that "Deinonychus" may have been cannibalizing each other, as well as the "Tenontosaurus", in a feeding frenzy.It is likely that "Deinonychus" favored juvenile "Tenontosaurus", and that when "Tenontosaurus" reached a certain size, it passed out of range as a food source for the small theropods, though they may have scavenged larger individuals.The fact that most "Tenontosaurus" remains found with "Deinonychus" are half-grown individuals supports this view.