What animal can defeat a tyrannosaurus rex?

Answer 1

Naturally, a young T-Rex unguarded by it's parents could easily fall prey to most large predators.

As for an adult Tyrannosaur, besides a human with a highly powered weapon, the only other likely candidates for land animals would be poisonous snakes, or a ridiculously huge pride of lions, in which most prides rarely get this large to begin with, however, big groups have proven themselves capable of taking down adult elephants, which are roughly the similar size of a T-Rex, though such occurrences rarely happen, differences would include an elephant being supported on four legs while the T-Rex only has two. When lions go after adult elephants, they try to crowd on top of the animal and overwhelm it, causing it to collapse to the ground (by the sheer weight of the pride rather than from exhaustion) Then they bite the trunk, opposed to the throat like most other prey.

Even if the pride managed to bring the T-Rex down, a Tyrannosaur has a very large throat and windpipe, a lion would have a difficult time squeezing the windpipe shut, an event could lead to the lions actually giving up. In the end, the lions successfully can bring down the dinosaur, but actually killing it would be a whole different story. Unless the lions were really patient and they simply waited until the T-Rex died from thirst, starvation or even exhaustion, such an event is very unlikely.

Answer 2

Ankylosaurus has a good chance, there are weaknesses to exploit on it but it's a pretty good adversary for a T-rex. triceratops could hold it's own against one as well but i'd say an ankylosaurus had the best chance at defeating a full grown, and healthy tyrannosaurus.

Answer 3

spinosaurus