did it give birth to the young one or did it lay eggs?
Lay eggs
Allosaurus
modern diapsid carnivores (including lizards, crocodiles, and birds) rarely cooperate to hunt in such a way. I
how many years ago did the allosaurus exist? 155 to 145 million years ago which period was that? The late Jurassic period describe this creature's physical features It was a typical large theropod, having a massive skull on a short neck, a long, slightly sloping tail and reduced forelimbs. was it a herbivore, carnivore or omnivore? Carnivore
wiki:1566172
Allosaurus [SEP] Social behavior
Such head-biting may have been a way to establish dominance in a pack or to settle territorial disputes. Although "Allosaurus" may have hunted in packs, it has been argued that "Allosaurus" and other theropods had largely aggressive interactions instead of cooperative interactions with other members of their own species. The study in question noted that cooperative hunting of prey much larger than an individual predator, as is commonly inferred for theropod dinosaurs, is rare among vertebrates in general, and modern diapsid carnivores (including lizards, crocodiles, and birds) rarely cooperate to hunt in such a way. Instead, they are typically territorial and will kill and cannibalize intruders of the same species, and will also do the same to smaller individuals that attempt to eat before they do when aggregated at feeding sites.