During migration, birds' digestive system partially shuts down to conserve energy for flight.
Anabolism builds tissues; catabolism breaks them down.
Ever wonder why your stomach makes all that noise when you're hungry?
Here's the scene. The audience is waiting with bated breath, you're just about to give a speech, and suddenly you notice your mouth is dry as sawdust. Why?
Cows, goats, and sheep require symbiotic microbes to help digest the plant biomass that they eat, and some of these microbes make methane.
How does your body know to stop digesting after all the food is gone?
Do you or someone you know have a food allergy or intolerance?
Why do we prefer "Mom's cooking" over another persons?
Have you ever felt better after laughing? Laughter can be one of the best medicines. Find out why on A Moment of Science.
Why do we have an appendix if scientists say we don't need one? Well, new studies have been published that explain why.