Yes, a gerbil can recognise their owner, my sister has two gerbils but I play with them more, they will come and play with me but they are too scared to play with my sister.
While they're not specifically intended for only gerbils, a lot of owners have had great luck using the Hova-Bator system. One of the biggest reasons is that they come with a large viewing area.
Other gerbils.
Gerbils are an animal and can not be "invented".
Male gerbils can be neutered, but it is not recomended. Female gerbils should not be spayed. In general male gerbils should not be neutered unless there is a good reason for it.
no gerbils are not originally from the UK but instead from the deserts of Asia. But you can still buy gerbils in the UK
Yes, mice are smaller than gerbils, but I think gerbils are the right size.
Yes, e.g Mongolian Gerbils.
They do have seizures (this is common in young gerbils)
No, they are not related. Gerbils are rodents, Rabbits are not.
Gerbils and nothing else.
No, Gerbils are vegetarian.
No. Gerbils produce gerbils and guinea pigs produce guinea pigs