Original sentence: Megawhaitsia is an extinct genus of tiger-sized therocephalian  that lived in Eastern Europe at the end of the Permian period, it seems that it was an apex predator due to a particular absence of gorgonopsids in the area,and was extremely dangerous since its remains indicate that it had a venomous apparatus to deliver poison through its teeth in a similar way like its much smaller cousin, Euchambersia
Edited sentence: Megawhaitsia is an extinct genus of tiger-sized therocephalian  that lived in Eastern Europe at the end of the Permian period, it seems that it was an apex predator due to a particular absence of gorgonopsids in the area, and was extremely dangerous since its remains indicate that it had a venomous apparatus to deliver poison through its teeth in a similar way like its much smaller cousin, Euchambersia