Dogs have been genetically encoded to understand human behavior.
Alcoholism runs in families. So does hangover tolerance.
Cats have evolved to hide signs of illness as a matter of survival.
Household pets decrease kids' chances of developing allergy problems!
Early human populations were more culturally diverse than previously thought.
Want to give your immune system a boost? Balance your gut bacteria.
Topsoil comes in many different forms, from nutrient-rich dirt to desert sand.
Losing a couple hours of sleep each night adds up to major sleep deprivation.
If you believe that life deals a fair hand, you're more likely to worship celebrities.