Desensitizing :D
The process you are referring to is called habituation. This is when an animal gradually becomes less responsive to a repeated stimulus over time, allowing it to adapt to its environment and focus on more important stimuli.
The process is domestication.
Adaptation is the process whereby a population becomes better suited to its habitat.
It generally refers to an animal that is accustomed to living with humans, such as a cat or dog.
domestication
The last specie of an animal dies.
You can - depending on the animal - but you shouldn't. Wild animals, excpecially older animals, are accustomed to living in the wild. If you find an injured animal, you should call your local wildlife canter and report it.
an animal becomes extint when it isnot given the right amount of food to eat and becomes endangered so that particular animal is said to be on the verge of extinct and finally dissappears.
After the animal leaves, the shelter becomes home to another creature.
An animal species is classified as endangered when its kind becomes harder to find in the wild.
basilisk.
flatworm