Afterward, the destructive asteroid crash-landed in Mexico with the power of a nuke, where they began spreading across the nation and eventually the entire world. Why and how they do this is completely unknown for this time.Īlthough the origins of the Monsters are largely unknown, they existed for nearly a millennia before an asteroid carried them to Earth.
As seen multiple times in the film, electronics such as lights tend to flicker in a Monster's presence. The creatures also do not need to breathe, sleep, or even eat, and are able to survive in seemingly any climate.Īn ability that the Monsters also have is the ability to affect electricity. Using these, they can detect even the most subtle of changes in sounds as little as a floorboard creaking miles away. The back of their heads are capable of unfolding into massive ear-like structures with pronounced, slimy eardrums. They have sensitive plates lining the front of their faces that can extend and contract to help them gauge the direction of where a sound is coming from. They are also inhumanly fast, able to travel miles in a minute, quickly moving to locations faster than their prey can react.ĭue to their lack of eyes, the Monsters hunt by sound, and are completely blind. They have abnormally sharp claws that are strong enough to cut through trucks and metal, and it is their main weapon for killing their prey. They also possess arms with prehensile digits, but they are only ever observed using their limbs for locomotion. They are stated to be "evolutionary perfect" machines that evolved to withstand firearms and even the destruction of their own planet. The Monsters are emaciated, vaguely humanoid creatures whose entire bodies are covered by many plates of chitinous armor.