HOUSTON—A new research analysis of a sample of Mars gathered by NASA’s Curiosity rover and initially studied by onboard instrumentation has determined that non-biological sources once considered ...

In this video I show you how I made an ant think it was dead by putting a specific chemical on it that ants use to signal when they have died. This is how ants know to put the ants that have passed ...

Researchers have discovered a biological switch that explains why movement keeps bones strong. The protein senses physical activity and pushes bone marrow stem cells to build bone instead of storing ...