Quiet and Cranky is a Bad Combo

Despite being related to docile whales, the hippopotamus is one of Africa's most dangerous animals for humans. By the time they reach adulthood, the average hippo is at the top of the local food chain, and have even been known to aggressively displace and even kill rather scary looking crocodiles.

So why is this mostly vegetarian animal so dangerous? Well, besides its impressive size, surprising speed and a famously cranky temper, the secret can be found in this photo. Even though a hippo can be over 7,000 pounds, your boat could float right over a hippo having a bad day and you wouldn't know it until it's too late.

by Dave McBride (@RadioHarambe)