I visit animal shelter fairly often
There's a really nice no-kill shelter by my house that I volunteer at on Wednesdays! They help a lot of people adopt pets.
I see. Is a no kill shelter different from regular animal shelter
Yes, a "no-kill" shelter is an animal shelter that does not kill healthy or treatable animals even when the shelter is full, reserving euthanasia for terminally ill animals or those considered dangerous to public safety. A "Kill Shelter"... well you can guess.
I see, then i guess the one i visit is a kill shelter. Now i am feeling bad about it
Well, the shelter you visit might still perform valuable services. Most humane societies, animal shelters and rescue groups urge animal caregivers to have their animals spayed or neutered to prevent the births of unwanted and accidental litters. If they spay and neuter there they might be keeping more unwanted animals from being euthanized!
Ok i see. Neutering animal is a form of castration right? 
Sort of, the male-specific term is castration. Neutering can happen to females or males!
Okay. But don't you think this is wickedness on the animal part too.
Canine reproduction
Canine reproduction is the process of sexual reproduction in domestic dogs, wolves, foxes and other canine species.
Canine sexual anatomy and development.
Canine sexual anatomy and development General.
In domestic dogs, sexual maturity (puberty) occurs between the ages of 6 to 12 months for both males and females, although this can be delayed until up to two years of age for some large breeds. Pregnancy is possible as soon as the first estrus cycle, but breeding is not recommended prior to the second cycle
also worked with her niece to help the pet population affected by Hurricane Katrina. In addition, Moretti volunteered for an organization called Best Friends Animal Society, which is a no-kill animal shelter (a shelter that does not euthanize to control animal populations) in Utah. She also worked with her local animal shelter on San Juan Island in northwestern Washington, where she has resided since 2000. While working at the shelter, she met her eventual business partner Jessica Ray, with whom she opened Downtown Dog in 2007. The