Definitely, the Bengal Tiger. They are such beautiful animals, and they do no harm. I think the hunters need to lay off the tigers, they're already endangered. Let's keep some tigers on this planet, people.
Global temperature and climate change are supposed to be dangerous to living animals. Afforestation may be the tools of saving animals and other livings in the globe because the natural equlibrium will sustain doing this jobs.
Wow I wish I could limit it to just one, but I can't. Sadly there are just too many :(