I don't shoot a lot of animals, because I find it hard to improve upon what other great animal photographers have done in the past. However, here is a tip for shooting animals. It's kind of a lame trick, but it always works. Use a wide-angle lens and get in close. It always makes the head look really big and cute. Humans love big-headed animals and it always makes them smile. Why this is, I have no idea... Note this trick also kinda works with babies.