Chemical reactions can cause decomposing bodies to twitch, move, and groan.
You probably already know that humans are warm-blooded, while creatures like snakes are cold-blooded. Scientists prefer the terms endothermic and ectothermic.
Anyone who spends an extended period of time in space faces serious medical problems due to the near total absence of gravity.
Now that the iPhone and other smart phones have taken center stage, there's another malady gaining traction... text neck.
Some species use their ears not just for hearing, but for communicating as well.
How tiny stones inside our heads tell us which way is up...
It can happen at a carnival or on the dance floor--that moment when you stop spinning and the world starts spinning around you.
How come someone with crutches outpace an uninjured person?
Why do we swing our arms while walking? Scientists are researching how we walk.
Bugs flip when they die because their legs return to what is called the "position of flexion."