Yeti: I think is impossible believe in it. I don't know exactly what the people could see but I think, probably is the result of the imagination of a group of people.
Loch Ness Monster: I explained before in my new topic. Is not true and in the Museum there explain all the real history
Mokele-mbembe: I believe in it but not actually, I think probably existis but many years ago not now. And more is very difficult to believe when doesn't exist any photographic evidence.
Pteroasur: I don't believe in its existence. Probably is more a legend...