The megalaukjaw replaced its ancestor the proto-megalaukjaw and has furthered its development in becoming an advanced land predator. Its lower jaw has developed and know is fully functional with a proboscis tongue that has a sense of taste. The number of spikes on its back has increased drastically to protect themselves while hunting. Its outer toes developed completely. Their top claw on their tail grasper has developed and become larger to be used when prey tries to escape behind them. Their brains further develop. Their stomachs develop as well.
The megalaukjaw being in such a prey rich environment does not have to spend all its time hunting for food. If they are not out roaming the plains for food they are resting under the trees saving their enemy for when they are hunting. They now live in packs of 2 to 4. Since they have more teeth, it is easier to cut through flesh. Also, since they have evolved their proboscis tongue, they can swallow larger chunks of meat. They no longer have to rely on digesting the meat outside their bodies. They will sometimes use their tail grasper to grasp their prey.
During the spring, male megalaukjaws will brawl with each other to have a right to mate with a female. After mating the parent will build a dirt nest surrounded by protective plants. At birth, the offspring look like premature versions of their parents. They're born with a coat of spikes that cover their entire body that they shed when they grow older. Both the mother and the father will hunt food for their offspring and teach they how to hunt themselves. They mature at the age of ten.
They communicate by making sounds with their nostrils and share the same language as their ancestors and can communicate with other related species.