Two infant siamang gibbons cling to each other. Barely 6 months old, their lanky limbs entwine their tiny bodies as they ...

Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't ...

A new collection of research papers examines how humans conceptualize numbers and the numeral systems we’ve build around them ...

Or maybe you pay for coffee, and the change is exactly $3.33? It happens once, you brush it off. But then it happens again.

Wildlife populations, from the adorable snow leopards in Nepal to the magnificent Mekong Irrawaddy dolphins and vultures in ...