10 Reasons Why Humans May Not Have Come From Earth

Humans are spreading, and they're spreading fast. 

As of 2015, there are over seven billion of us crammed onto this tiny little planet and the number is always going up. Not exactly a balanced eco-system. 

It's almost as though we're an invasive species.

What happens when you introduce a new species into an environment that they did not evolve in? A lot of the time, they take over. 

This is due to the fact that they do not have any natural predators and the local fauna are not equipped to defend themselves against them. This means that the non-native species has free reign to hunt, eat and breed, with the potential to decimate the local environment.

This does sound an awful lot like how we interact with the natural world. We're so far up the food chain, that we don't even feature as the apex predator in it, we actually exist outside of earth's eco-system. It does seem to scream foreign species.

Even with other invasive species, the ecosystem will ofetn find a way to restore istelf back to normality. With "normal" imbalances in nature, that balance can be quickly restored as the food runs out, and the invading species will quickly begin to reduce in number again. This doesn't appear to have happened to humans so far. 

Perhaps, when the resources finally do run out, we'll go the way of many other species and simply become one rogue algea bloom in the long natural history of the planet.