Anatomy and Physiology

What Turns Your Finger Green From Rings?

What Is the Brown Note and Is It Real?

Do Lips Change Shape With Age?

Do You Have a Dominant Nostril? The Science of Nasal Cycling

How Many Holes Do Birds Have?

Are Eggs Embryos? The Crucial Difference Explained

Do You Sweat More When It’s Humid?

What Are the Hammer, Anvil, and Stirrup Bones?

What Colors Are Toucans? A Look at Their Beaks and Bodies

What Happens When an Enzyme Is Denatured?

Where Is the Midfoot and What Bones Make It Up?

What Muscle Extends the Thumb?

Is Oxygen Positively or Negatively Charged?

How Big Can an Otter Get? Size by Species

Why Should You Wear Light Colored Clothes on a Hot Day?

What Is Smooth Muscle Tissue and How Does It Work?

What Direction Does Friction Act Relative to Motion?

What Color Are Tuna? The Science Behind Tuna Meat

What Tissues Are Stem Cells Used to Repair?

What Is Molecular Polarity and How Is It Determined?