In people's imagination, alien creatures always look strange. They either have huge and deformed heads, or they look like enlarged versions of insects. The monsters we see in science fiction movies actually have prototypes in reality, and some monsters are actually "synthesized" from several types of earthly creatures.

The movie series "Alien" left an unforgettable impression on people. The alien monsters in the film not only feed on humans, but can also hatch in human bodies. But you may not imagine that in the real world, the prototype of the alien is actually a fragile creature, and people may trample to death when they inadvertently lift their feet.

Treehoppers are small insects that rank among the top three weirdest-looking insects in the world. Similar to the aliens, each treehopper has a "helmet" on its head. They can freely change the shape and color of the "helmet" to protect themselves from being discovered by the enemy, or to scare the enemy.

Another creature that is thought to come from extraterrestrials is the octopus. I believe many people have the impression that the original alien image is closest to the octopus. They both have a They have round heads, and some creatures have tentacles.

The reason why the octopus is considered an alien creature is because it is the most different creature in the world from humans. The structure of the octopus's eyes is very special and even more advanced than humans. Other than that, octopuses have almost no resemblance to humans.

In addition, the "thinking ability" of octopuses is also the most surprising. In many experiments, octopuses have shown intelligence unmatched by other creatures. They can use their claws to open food in the lid. It even took the initiative to close the lid, and other octopuses also have the same learning ability.

The last creature is so disgusting in appearance that it would not be surprising to regard them as alien creatures. This creature is a fungus, also known as the "devil's finger."

The devil's finger grows in Australia. Before it matures, the devil's finger looks like an egg. When they reach maturity, the devil's fingers will burst out of the "eggshell".

This fungus emits a strong smell that attracts nearby flies and helps pollinate it. Judging from the appearance, the devil's fingers look like the alien babies about to hatch in the Alien movie.