Tiger Threshers are eel-like creatures that have leopard-like splotches towards the front of their body, and small stripes towards their tail (like a tiger). Their head is transparent and bioluminescent, like that of a barreleye fish. Like the head of the Tiger Thresher, their tail also glows, but not as brightly as their head. The spine of the Tiger Thresher has spiny protrusions that cover the majority of their back. Tiger Threshers do not have visible eyes, like most of the sea-life on Europa. They also possess a "beard" on their neck.
Tiger Threshers are only found in swarms (amount depends on the difficulty) with Bone Threshers.
In-game
Tiger Threshers will favor going after humans out in the water, and their razor-sharp teeth inflict heavy bleeding on their prey. Tiger Threshers are capable of entering the submarine through holes in the hull.
Tiger Threshers will attack any creature on sight, no matter is it stronger or weaker than Tiger Thresher. (occasionally can kill Moloch)
Tiger Threshers can't breath air, and die fast in a room without water.