IDB 11/3

1) Lycaenops

a) It was a carnivore. It's teeth are sharp and elongated, with much larger canines.

b) It was around 2 meters long. The head of Lycaenops is roughly 1/6 of its total body size, and the head was about 33 cm, so it came out to roughly 2 m.

c) It moved very fast in order to run down prey. It had four legs that were tucked more under its body and long, slender arm bones necessary for an agile runner.

1) Lystrosaurus

a) It was a herbivore, because it didn't have any teeth, had a wide rib cage to hold the gut for digesting plants, and had only a beak for crushing the plants it ate. The keratin beak wouldn't be useful for eating meat at all.

b) It was relatively small, about the size of a small to medium dog such as a pitbull or bulldog. Its small skull and overall bone structure points out that it couldn't have been very big.

c) It moved slowly, with waddling movements. It had a wide ribcage that made running very difficult.

2) Lycaenops - I think it lived in a fairly well-populated environment, because in order to grow as big as the Lycaenops, you need plenty of meat to nourish yourself with. Maybe not such thick forest, because it ran fast. It didn't use the ambush method of attack, but rather chased its prey down. There was definitely an abundance of flora and smaller creatures though in order to sustain animals like Lycaenops.

Lystrosaurus - I think it lived in an environment full of flora, because that is what it dined on. It didn't seem to have much defense, so it must have had cover to hide from predators as well.