Dear Pet Talk: I’m not allowed to have a cat or a dog but my parents will let me have a smaller pet, like a gerbil, hamster, or even a mouse. What do you recommend? Animal Lover Dear Animal Lover: ...

Rats are thin-tailed, medium-sized rodents, and you can find them all over the world. “True rats” belong to the genus Rattus, and around 60 species have been recognized so far, including the house rat ...