What is the most shocking animal you have ever seen?

My most shocked animal is the cat. You may think a kitten is so cute. What's so strange about it? But if you put the cat under a threatening lens, that is, under a macro camera, you will feel that the cat gives you a completely different feeling from real life. It is a very huge, terrible and majestic creature, not the very cute and majestic creature you see in real life.