Sanddigging Serpentsaur

The suffocating serpentsaurs living on the beach of Somarinoa had a hard time finding any food since most of the prey was killed and eaten by the slonefaug, as well as risking getting eaten themselves. The water didn't provide much more food since there were a lot of predators hunting there. So open hunting wasn't benefiting. Therefor the suffocating serpentsaurs started hiding behind rocks, in different types of grass and most benefiting, under the sand. By digging themselves down under the sand with only their eyes showing they were able to attack the prey when they weren't ready, as well as stay away from slonefaugs. After many years the sanddigging serpentsaurs became experts at this sort of "ambush". Their sail-spikes now sit on the end of the strong tail, making them very maneuverable as a mace-type weapon.To be able to breath under the sand the Sanddigger has actually evolved a breathing tube out of its nostrils which sits on its snout like horns, and their eyes is now much more suited for laying under the sand, two pairs devolved (and even though they still can be used when the sanddigger is on land they are pretty useless), while the other pair is now bigger and better, on long eyestalks. They are often mistaken as rocks by creatures. The nose and mouth is shaped so the sanddigging serpentsaur can easily dig under the sand, it is no longer as strong since the prey of the sanddigger is always already dead when it eats it. The breathing tubes can lay flat on its snout to aid in digging. Since the sanddigging serpentsaur can lay under the sand for many months without getting any prey it also stores extra energy as fat on its belly. The huge belly is no penalty since the sanddigger is almost never threatened and never has to move fast. However, when the mating season is closing in the sanddigger stops eating on purpose to make the extra fat go away, to be able to move at a decent speed when it goes up on the surface to find a mate. After mating both males and females go back under the sand, the females however goes back up in a similar way when its time to lay the eggs. The newborn sanddiggers are born with a lot of extra fat, so they have a hard time moving fast. But this fat is needed since when the sanddiggers dig down for the first time as fast as they can after they are born they aren't able to hunt anything due to their small size and undeveloped sail-spikes. When it is grown enough to kill its own prey the sanddigger is hungry and thin. The sanddigging serpentsaur replaced the suffocating serpentsaur on Somarinoa Beach only.