Cats:
A fertile female cat, her mate and all of their offspring, producing 2 litters per year, with 2.8 surviving kittens per litter can total:
1 year: 12
2 years: 67
3 years: 376
4 years: 2,107
5 years: 11,801
6 years: 66,088
7 years: 370,092
8 years: 2,072,514
9 years: 11,606,077 |
Dogs:
A fertile female dog, her mate and all of their puppies, if none are ever spayed or neutered, add up to:
1 year: 16
2 years: 128
3 years: 512
4 years: 2,048
5 years: 12,288
6 years: 67,000 |