Preview: Questions on Human Self Domestication скачать в хорошем качестве

Preview: Questions on Human Self Domestication

Human brain size has increased dramatically from archaic hominins who evolved for over 3 million years. Most believe our brain volume and brain to body mass ratio must be the highest now since humans built this incredible modern civilization. However, scientists have discovered a surprising reversal in our species: that in contrast to much of hominin evolution, there have been significant reductions to brain mass over the past 50,000 years. Our brains are now the smallest they have been at any time in the past 100,000 years, over 10% smaller. At the same time, our encephalization, brain size relative to body mass, also declined – one of the papers states that our encephalization is about 17% lower. There are different theories on why our brain size declined. Self-domestication is a prominent one which receives more publicity. This is a preview of my next research video regarding my questions on the human self-domestication hypothesis. Patreon:   / curiousbeing   Instagram: instagram.com/curiousbeingtina Twitter:   / curiousbeing15   Photos and films came from online sources. This is my YouTube Channel “Curious Being.” I have many diverse and interesting topics to share, such as Lost Ancient Human Civilizations, Megalithic Sites, and other related fascinating studies. History vs. Mystery revealed! Thank you for watching.