Specie: Human
Average height: Varies in the extreme, from as small as two feet to as much as eight or nine feet, although the average norm is around five to six feet in height.
Average weight: Varies widely, according to size and build.
Reproduction: Female - monthly cycle, with a nine month term before childbirth. Usually one child per conception, though twins are known to happen from time to time, and triplets or more almost impossible.
Social habits: Most humans will cluster into certain area's or groups. Few feel the need to be alone constantly, hence the large concentrations of them after the intial plague had cleared the world of most humanity.

Specie: Mink
Average height: approximatly four and a half feet to five feet high.
Average weight: approximatly one hundred to a hundred twenty pounds
depending on time of year. (They gain weight during the winter seasons.)
Reproduction: Female - Bi-annual season, usually mid-winter (this will put birth around spring) and early summer. Nine month gestation, as human. Normally twins, with occasional triplets.
Social habits: Not being as many around as the other species, they usually will form small groups from two to six individuals, forming a family unit. They will normally mate only with their own kind, though one or two rare occasions are known where one has taken a mate from another species.(So far, humans seem to be the only ones they consider for this, though they can't interbreed.)

Specie: Raccoon
Average height: three to four feet
Average weight: sixty to ninety pounds
Reproduction: Unknown (So few are public about such a thing, that at this time it is not known)
Social habits: This small race of furfolk are very reclusive, rarely dealing with anyone that isn't of their own kind. Only a few social outcasts actually deal with outside races, and from these few people they trade and barter for their goods, keeping their contact to the outside to a minimum.

Specie: Canine (For some reason still unknown, the virus cause a variety of mutations from the canine family, from domesticated to the wild.)
Average Height: Varies widely
Average weight: Varies widely
Reproduction: Heat cycle is every three months. Gestation is six months. Normally two to three pups per birth.
Social habits: They are very social creatures for the most part, found in 'packs' that vary widely in size. They can be found in just about every major population center, as well as in the wilds. It isn't uncommon to find that they bond with other species as protectors and friends, and even occasionaly mating with other species. (Again only heard of with humans. It is an odd phenomenon, because none of the other species seem to show any interest in each other beyond friendship, but will take on human mates.) Canines also are the most populous of all the furfolk, outnumbering all the other species(except humans) by at least three to one.

Specie: Feline (This consists mostly of the household domesticated cat. It is very rare to hear of any exotic or undomesticated breeds in the world. It is speculated that they are even more reclusive than the raccoons due to their low numbers)
Average Height: four to six feet
Average weight: sixty to a hundred and forty pounds
Reproduction: Heat cycle is every six months. gestation is seven months. Liters of two to three young.
Social habits: They tend to be slightly reclusive at times, though mix easily with crowds when they have to. Normally they wont group together but in rare circumstances, such as mothers sharing child raising duties. Normally will only mate with their own kind. (Though a few have found very lucrative careers selling their bodies for sexual purposes.)