If "dangerous" means "deadly" (ranked by numbers of human deaths)

Then, "cars" is the most deadly;

followed by diseases, "drugs and crimes", political killings and now "natural disasters (droughts, floods, earth quakes, storms, tsunamis, ,,,)

It is fair to say that animals mentioned are deadly to people.

And we should "know" what they look like and that they can kill.

But, we should also know that "cars", "drugs" (including alcoholic drinks and cigarettes), and politics are as deadly.

And we should "know" what they do to us and our families.