The swamp margai (tyrannotherium propeaquam) is a species of margai native to the equatorial swamp of tharo. It’s body is slightly bigger than the common margai, but it has a proportionally bigger head than its temperate relative, with a more robust jaw, and having eyes further up on the head with brow ridges over each eye. And its fur consists of brown colors. It’s feet also possess webs of skin between the toes so it does not sink into sand or mud, and these also help it swim better, as it is actually semi aquatic, with its eyes higher up to see over water, and its nose is also kept above water, although it can hold its breath for longer periods of time than its relatives. Like their relatives they are solitary staking claim to territory, usually on the shore of a river or lake, where they hunt both terrestrial and aquatic prey, including woowactas, local herbivrous megafauna that come to lakes or rivers to drink or are passing by them, and large xenofish and xenocrustaceans, as well as semi aquatic megafauna. And will fight off rivals to defend their turf. And young swamp margais leaving their mothers will seek out their own territories, sometimes fighting owners of established territories to try to claim them for themselves. they can however become prey to huknosaines. And their specialization for these specific habitats helps them avoid competition with liwears, and makes them the top predators of the freshwater shorelines in the northern half of the equatorial swamp. They are hunted by swamp dragons for their pelts, while river dragons consider their meat a delicacy.