foopets
here are some sites that deal with animals:well horses,u can also go google animal games,or and vitrual animal games! ponybox.com howrse.com bellasara.com MAFkidsclub.com
twiggy
well here are some websites for kids to adopt pets for freemoshimonstersanimal jamfoopetspet parkwebkinz
GoPets, PetNebula, FooPets.com, Net Pets, plus more.
there is club penguin fantage stardoll foo pets neo pets barbie.com
jumpstart 3-d world.
Yes, as long as you keep them safe and away from any other pets, go to some websites on how to look after pets. :) Hope that helped, you probably know that already!
Orgin
Petaboo.com is try www.petaboo.com i think they are relaunching wiht some neat features
Moshi monsters
you can try guffins (has to be downloaded)
The best websites for kids are... Webkinz Club Penguin Fantage FBFKids Neo Pets