life on planet earth on Energy Drain

A lion is fully capable of capturing, killing, and eating a field mouse. But it turns out that the energy required to do so exceeds the caloric content of the mouse itself. So a lion that spent its...

I don’t know about you, but I’ve never been very good at paying attention to my car’s fuel tank. I remember in high school I drove an old Jeep Grand Cherokee that had a digital fuel gauge. In 1998 tha...