Evolutionary Psychology predicted it; Data now confirms it; Legalizing marijuana doesn’t increase teen drug use. … More Why Legalizing Marijuana Leads to a DROP in Teen Drug Use (hint: evolution)
Researchers have developed a new method to discover the precise genetic differences between humans and our ape relatives. … More A New Method to Detect Natural Selection in Genes
In a recent episode of This World of Humans, I interview Dr. Dan Graur of the University of Houston about his recent paper entitled, An Upper Limit on the Functional Fraction of the Human Genome. … More How much of our genome is junk?
A low waist-hip ratio WHR) is known to correlate with health, fertility, and attractiveness. However, new evidence connects WHR to number of offspring. … More New Evidence on Waist-Hip Ratio Reveals Surprising Relationship to Fertility, Urges Revision of Attractiveness Theories
It’s becoming increasingly clear that animals do a great deal of social learning, which gives insight into how humans became culturally modern. … More Social Learning in Animals: Implications for the Evolution of Human Intelligence
Analysis of 1.8 million year old teeth reveal that this Homo habilis was right-handed. … More Even Homo habilis Was Right-handed
The “pain grimace” is quite similar in many mammals, but where did it come from and why do we do it? … More Why do We and Other Animals Wince When in Pain?
What’s in a voice? A lot, it seems. Certain vocal properties correlate with physical measures that serve as proxy indicators of health, fertility, and attractiveness of females … More Properties of our Voice Encode Information about Health, Fertility, and Body Shape
In order to address the question of what the ancestors of humans and Neanderthals might have looked liked, a research group at the University of Cambridge took a digital approach. … More “Virtual Paleontology” Provides Insight into Last Common Ancestor with Neanderthals
Traumatic memories are especially prone to distortion and exaggeration over time, complicating recovery of PTSD. But could this phenomenon have once brought evolutionary value? … More Why does Trauma Cause Memory Distortion?