The Simple Truth about Spaying and Neutering Animals don't share our sexuality. They are not motivated by sexual pleasure, but rather by an instinct to breed. For animals, it's not that complicated or convoluted. Altered animals of either gender make better pets. They enjoy longer, healthier lives, and are more relaxed.
Unspayed females have higher incidences of mammary tumors, uterine infections, and cancer.
Unneutered males, in addition to demonstrating high levels of aggression and other behavioral problems, have much higher probability of prostate cancer. Call your local SPCA and ask for a referral. If you're low on cash, ask your friends to pitch in. You'll be surprised at how responsive others will be. 13 million animals are destroyed every year because of over population and our diminishing ability as humans to care for those animals that exist.