Where the Puffer Fish appears friendly and rather safe, the Goliath Tigerfish is exactly the opposite. The Goliath Tigerfish is just as big as it sounds: weighing upwards of 70 pounds while growing up to six feet in total length. These fish look like something pulled out of Jurassic Park and we wouldn’t be surprised if they had a distant relative back in the times of dinos. The Goliath Tigerfish likes to travel in packs throughout the river water of Africa and they take down their prey in only a couple of seconds. Their teeth can get up to two inches in length and they’ve been blamed for numerous deaths of locals who use the river for a source of food. We’ll avoid a cheap ticket to the Congo River even if the hotel reservations are free. No thanks, getting eaten alive is not on our wish list.