Fire
The flickering light of the flames, the pulsing red of the coals, the sheer sensuous pleasure of the radiant heat.
There’s no doubt in my mind that the first major change to their environment early Hominids made was the taming of fire. And then they evolved to better take advantage of that warmth in the cold, the delicious food that happened when things were exposed to fire. The safety from predators in the night, a relatively safe way to drive animals over a cliff. Read more