Boomslang
While this snake tends to be shy and not bother humans, when it does, it can ugly real fast. The snake’s venom contains a hemotoxin that disables blood clotting, meaning that the victim would die slowly by bleeding out of every pore in their body.
Hyena
During the day, hyenas tend to be wary of human interaction, but after the sun sets, things change. Hyenas have been known to hunt humans throughout history, but their behavior worsens during wars and times of disease since they can smell the human corpses.