Humans by far! The least understandable animal because if humans are great at one thing it's lying to themselve, so not a great start…. And, they never learn from history so are easily mislead by leaders.

The funny thing is I have been seperated, by 5 feet, from a very wild grizzly bear! We are hiking and some people on the other side of a lake screamed and we didn't know why. About 30 seconds later there is a huge crash in the woods right next to us so I bend down and I am face to face with a 400 pound grizzly. We looked each other in the eyes, which is normally a very bad thing, but I felt really calm and felt an understanding between us that neither was in the mood for a fight.

Humans.Most dangerous species on the planet.
Animal adore you if they like you and bite you if they don't. Its black and white.
With humans, needless to say they might like you, hate you, hurt you, protect you and love you, all at the same time.

Humans. I am much more likely to be harmed or killed by a human than I am a wild animal. In addition animals won’t be affected by what I say, where humans will and may take action against it.

I am afraid of people. Not all people. Not the people I know and love. I am afraid of the unknown people, the ones that may seek to harm me or my family. They seem scary to me because of all the coverage the mass media gives to criminals and crime. I know it's important to report and perhaps I should tune it out.