11 Traits Aliens Must Have According To Science

They Won’t Eat Humans

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What if they want to feed on us? While a scary thought, it’s unlikely. A race advanced enough to achieve space travel surely will have conquered its need to prey on living animals. The journey to earth from any potentially life-supporting planet is incredibly long, and for any species to attempt it they would have to have sustainable food production methods already in place.

Further, the digestive setup of a creature that evolved in a different sector of the universe is not very likely to be compatible with the kinds of proteins found on our planet. It would be inconceivable that the minimal nourishment resources found on our planet would ever justify the energy spent to obtain it. An alien race would already be adept at harnessing energy by that point. So we won’t be cattle.

Impersonal Killers

pesticide

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How many people have ever moved into a new home and found a colony of bugs as an extremely unwelcome surprise? How many of those people then squished each and every offender by hand, swinging the shoe of death over and over again until the job was done? No, most people would call an exterminator to gas the home and lay down poisons for the survivors.

Aliens, like any advanced species, will make use of technology to their advantage. They will probably eradicate the life forms on a planet they are considering for their own uses before landing. Forget skies filled with single-pilot saucers firing laser beams at the Capitol Building. Expect a quick and efficient, probably biological, end to our existence.

Not Giant Insects

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While it’s scary as crap to picture aliens as giant forms of the animals that give us the creeps on Earth, it isn’t scientifically plausible. This concept is born more out of a fear of losing our dominance on this planet combined with an evolved disgust response to disease-carriers.

In reality, the body structure of an insect only functions on a small scale. As they do not have oxygenated blood, they cannot take in enough oxygen from our atmosphere to grow larger than they do. In prehistoric times, when the atmosphere was much more oxygen rich, they did grow to distressing sizes, but we’re talking around a meter long. The image of roach-like creatures towering over us is pure fantasy. Sorry Heinlein.

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