These carnivorous reptiles are the heaviest lizards in the world. They have sharp claws, and serrated, shark-like teeth to eviscerate their prey. Today we'll see their worst attacks, the people who ...
Do you think humans are at the top of the food chain? Hmm, think again. Scientists have estimated that humans are in the middle of the food chain, like pigs’ or anchovies’. So you may need to learn ...