Depends on what kind of shelter it is. Learn more at ChaCha.com!
4 million animals die a year because there isn't enough room in animal shelters!!
Usually, they are kept or put into foster homes. In certain countries they are shot, but in most they are put to sleep.
It is difficult to give an accurate answer - many hundreds of thousands of animals are put to sleep each year, but the number will vary from country to country. "Too many" is my personal answer, as too many pets are being bred from, which can produce animals with poor health and temperaments, or people owning pets but are ignorant to the animal's needs, so will put them to sleep or put into shelters, where most are put to sleep in order to create more room for new animals being brought in.
Because there are so many animals there that don't have homes that their only choice is to put them to sleep. :( There aren't enough shelters or adoptive parents for all the animals. Most of the shelters live on donations as well. Some animals have had a rough life and can not be rehabilitated and is dangerous to to people while others are too sick.
Because they don't want it, or they can't afford it.
They give shelter to homeless animals, and give the animals a place to eat and sleep.
In this econemy most people who are foreclosed on or down size cannot take their pets with them. This ahad lead to an influx of pets being abandoned at local shelters. Specifically in the south a shelter will take a heathly dog or cat and keep it for about three weeks. If no one has adopted it by that time they will put it to sleep in order to make room for more dogs and cats. Sometimes animals also come in sick or harmful to people and they are put down immediatly. The shelters do not try to harm the animals, but the more people that can't afford their animals the more end up in shelters and the more have to die. It is a sad fate, but one that cannot be avoided at this moment.
In this econemy most people who are foreclosed on or down size cannot take their pets with them. This ahad lead to an influx of pets being abandoned at local shelters. Specifically in the south a shelter will take a heathly dog or cat and keep it for about three weeks. If no one has adopted it by that time they will put it to sleep in order to make room for more dogs and cats. Sometimes animals also come in sick or harmful to people and they are put down immediatly. The shelters do not try to harm the animals, but the more people that can't afford their animals the more end up in shelters and the more have to die. It is a sad fate, but one that cannot be avoided at this moment.
Estimates vary, but on average, around 3-4 million animals are euthanized in shelters in the United States each year, which represents around 50% of the animals that enter shelters. This number has been decreasing over the years as more efforts are made to promote adoption and spaying/neutering.
6 million
2 weeks
they put them down (to sleep) after a specific period of time as this helps control the unwanted pet problem and helps make room for new animals that may have a better chance at finding a new home