Using dating techniques that examine the build-up of calcium carbonate, scientists have concluded that artwork found in caves in Spain is more than 40,000 years old. That makes the particular artistic statement — a red dot, found on a wall that features a series of depictions of hands rimmed by red paint — is more than 4,000 years older than the previous oldest known piece of human art.
The age of the art is extraordinary, because it stretches back to the dawn of human immigration into Europe, which is believed to have occurred about 41,000 years ago. To give some context to the amazing age of the paintings, consider that the first known civilizations didn’t begin until about 6000 years ago, and that if you went back in time 4000 years from today you’d be at a point centuries before the birth of King Tut.
Discoveries like this make you wonder how old human expression truly is, and when it first was displayed. Is cave painting the earliest form of human artistic expression, or is another form even older? When did humans first sing, or dance around the fire pit, or create some form of music? How soon after language was developed did the first poet or storyteller come into being?
The days of these early humans were consumed by hunting dangerous animals, foraging for food, building fires, creating tools and clothing, and avoiding predators — and yet they spent time creating art on the walls of their cave shelters. The fact that the artistic impulse is found in such early humans says something very powerful about creativity and the artistic urge as a fundamental part of human nature.

The mastodon rib bone is unique because it includes an embedded projectile — a spear-point, also made from a mastodon’s bone, that had been sharpened to a needle-like point. Scientists have applied precise new dating technologies, including radio carbon tests using atomic accelerators, to the bone and have concluded that it dates from 13,800 years ago. The age of the bone is significant because it predates the point at which the so-called “Clovis hunters” were supposed to have swept across the land bridge from Siberia and spread across the North American continent. The needle-like spear point in the mastodon’s rib — which uses bone tool techniques much more sophisticated than those purportedly used by the stone tool-wielding “Clovis hunters” — indicates that humans probably arrived thousands of years earlier.
Interestingly, climate change apparently played a role — although no one seems to be attributing that climate change to humans (yet). During the Ice Age, there were smaller concentrations of carbon dioxide, which discouraged tree growth. As a result, there were vast pasture lands that were perfectly suited to large grass- and plant-munching beasts like the woolly mammoth. As the Ice Age receded, climates warmed and carbon dioxide concentrations increased, which in turn led to the development of forests that encroached on the grasslands that were crucial to the survival of the mammoths.