One of the best ways of tackling this annoying dino I found is, if your aim is good enough, to bind it with a bola. Since it charges straight at you on sight, connecting the throw is relatively easy. The time the animal spends with its legs tied is usually enough to poke even high-level (100+) ones to death with a spear. BEWARE: the bola somehow doesn't prevent it from using its pouncing/robbing attack, so approach it from the side.

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