[s1artibartfast]

I think you are underestimating the difficulty of catching a mouse.

I have hunting dogs and they can spend several hours going after a mouse, and their success rate isn't very good.

Plus, large animals are poorly Suited to hunt much smaller animals. Speed, momentum, and anatomy are not in your favor. Imagine driving a semi truck and trying to run over a mouse

[rightbyte]

Ye maybe you are right. I would not even try to catch a mouse by hand myself. And I have no clue how a lion would compare to a house cat in hunting a mouse.

But your dogs, do they hunt with their feet? I don't think dogs use their claws like cats do, making it really hard to get to the mouse? Like, dogs can't do a slap like cats and humans can?

[s1artibartfast]

Yes, dogs incapacitated prey with their mouths, and use their paws less.

That said, I think the bigger differences tho are momentum, distance, and turn radius. A tyranasaures head is something like 10ft off the ground. By the time it winds up and reaches the ground, the mouse would be long gone.

There are great documentary videos of large cats chasing desert rabbits that show this really well. The cats are bigger and faster and stronger, but the rabbits can turn faster.