These adaptations are genetic baggage today, causing humans to store fat efficiently despite abundant food availability.
Isn't it possible convergence caused modern humans to re-develop similar features to archaic humans because of similar lifestyles?
Any object which causes humans of the past to think along new lines can be the springboard for altering the course of history.
The woman, however, causes humans to 'fast-evolve' into large lion-like creatures.
They stole the magic from Earth, causing humans to stop believing in it.
In the process of discovering the substance's effects, he discovered the Nicodemus flower which caused humans to go insane, slip into a coma, and subsequently die.
He has also on at least one occasion secreted powerful pheromones which caused nearby humans to behave violently.
He was very worried that his lapse had caused humans to be injured or worse.
It is her thesis that the superabundance of robotic labor has caused humans to become indolent and nearly incompetent at accomplishing even trivial tasks.
That connection was what caused humans to seal their dead in caskets to keep the worms away or to burn them and remove all possibility of further depredation.