Ferrets make excellent pets for people who have the time for them, and who bond well with animals. Ferrets are naturally quiet, friendly, inquisitive, intelligent, and companionable. At certain points in the day, they are also exceedingly active and capable of getting themselves into trouble unless they are supervised.
Active mostly at night, these creatures are a good pet for someone who has a 9-to-5 job. They are solitary animals that do not crave human interaction or cuddling. They take time to get used to humans but can be hand tamed with constant, gentle handling and interaction.
Sugar gliders make excellent pets for people who take the time to learn about their needs before acquiring them. They are extremely social animals that get depressed when housed alone, sugar gliders should never be kept singly as pets but rather should be housed in pairs. Sugar gliders are playful, curious animals that typically love to hang out with both their cage-mates and their human caretakers.
A fancy mouse is a domesticated form of the house mouse, one of many mouse species, usually kept as a type of pocket pet. Fancy mice have also been specially bred for exhibiting, with shows being held internationally.
Pet rats are relatively easy to care for but that doesn't mean they are low maintenance pets. They require a fair amount of attention and exercise outside of their cages—at least an hour a day is ideal. Since rats are very social they should never be kept alone. Same sex pairs or groups are ideal.