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.
You probably want a yearly average... but you didn't ask for it so... if that's what you want to know... please be more spacific. your answer is... They all do. euthanization is irreversible. The animal dies instantly.
You can put it in a Hotel or in your marahome.
Uhh... all of them die when put to sleep. Being put to sleep is killing them "humanely".
by the side
well if you knew they were being put to sleep it would have been a dream about how upset you were and suff but if you didnt know they were beind put to sleep then it was probably just a weird coincedence...
neopets,moshi monsters,bin weevils
You bring it to its stall, only if tired will the sleep icon appear when he/she is clicked on. Or you can choose the nap or sleep icon at any point, as long as its tired.
I get put to sleep
First, put the smallest to sleep. Make sure it is comfortable, preferably put it in a crib. Then put the biggest to sleep
When you put a pet to sleep, you euthanized it.
You can sell them or put the pets up for adoption.
Yes, spore does put a Pokemon to sleep. It will incduce sleep every time.