Whatever they can catch... probably rabbits or squirrels if they are quick enough.
By smell. Beagles track prey by sent.
Their favorite prey are Gazelles and other similar animals.
Beagles are dogs, hamsters are rodents, dogs eat rodents ergo:
beagles
Crocodile's favorite prey is usually fish.
A tiger's favorite prey is deer and wild boar
Yes they can.
Don't you? I do.
Yes, warthogs are a favorite prey item of the lion.
Since beagles are dogs, you should feed them dog food.
It is VERY bad for beagles to eat green tomatoes (it can make them very sick) but even if they eat red ones, you should go to a vet.
They can have a tendency to over eat.