LifeOcean life surged 500 million years ago due to cooler sea temperatures A fall in sea surface temperatures around 500 million years ago led to the evolution of aquatic life that could survive in newly hospitable environments News
HumansMysterious ancient stones were deliberately made into spheres Stone balls found at a site used by early humans about 1.4 million years ago didn’t become round after being used as hammers, but were intentionally knapped into spheres News