It has to be PREDATOR X. Without a shadow of a doubt. It had 3 times larger head span than a T-rex's. It weighed about 5 double decker buses and weighed more than 45 tonnes. T-rex has no chance.
megaloden
Supercroc is said to eat dinosaurs. I don't know if this was true or not, but by the size of it, it very well could eat a dinosaur easily, and even be feared by the dinosaurs. We always thought that Dinosaurs were not afraid of anything (or at least the big carnivores, such as the T-Rex) But, maybe even they feared 1 thing. Supercroc.
mambas and camo spiders are some of the most feared.
Most dinosaurs were herbivores. There was a wide variety or carnivorous dinosaurs, though, and all herbivorous dinosaurs evolved from the earliest carnivorous dinosaurs. Birds are descendants of carnivorous dinosaurs.
The Roman senate and the patricians (the aristocracy) feared Caesar the most.
Most feared a... wolves most dangerous honey badger
Dinosaurs are most closely related to birds to the extent that birds are cnsidered a branch of dinosaurs.
Some dinosaurs did have spines but most did not. The main body coverings of most dinosaurs were scales and feathers.
It depends on what war you mean. Bombs, nuclear to be precise, were some of the most feared weapons. Tanks also were feared highly.
What most people call "flying dinosaurs" were actually pterosaurs, flying reptiles that were unrelated to dinosaurs. However, birds are considered by most scientists to be a clade of dinosaurs, and thus birds are "flying dinosaurs."
Thanatophobia
i think people who went to his castle feared him the most.
Muslims, Vikings and Magyars The vikings where the most feared