Have you hard of animal shelter?
Yes, animal shelter or pound is a place where stray, lost, abandoned 
Yes abound on what? 
surrendered animals, mostly dogs and cats, and sometimes sick or wounded wildlife are kept and rehabilitated.
Wow that is good, it will keep our animals safe
While no-kill shelters exist, it is sometimes policy to euthanize sick animals, and any animal that is not claimed quickly 
Wow, can I know more about animal shelter?
In Europe, of 30 countries permitted the killing of healthy stray dogs.
That is not good, why would that do that?
Do you know that  The word "pound" had its origins in the animal pounds of agricultural communities, where stray livestock would be penned