Anatomy and Physiology

Are Starfish a Fish? The Biological Answer

How Is the Ear Connected to the Throat?

What Is the Difference Between HCG Qualitative and Quantitative?

Why Do My Nipples Leave Stains on My Bras?

Are No-See-Ums Mosquitoes? Facts About Biting Midges

Can Sex Bruise Your Cervix? Symptoms and Prevention

On a Carnival Ride and Feeling Dizzy? What’s Causing It?

What Does Being Blind in One Eye Look Like?

How Many Body Segments Do Spiders Have?

How Long Does Swelling After Surgery Last?

What Prescription Is 20/20? Explaining Visual Acuity

How Long Do Moths Stay in Their Cocoons?

What Physical Features Allow Tigers to Fight and Kill Prey?

Do Rats or Mice Have the Longer Tail?

How Many Sets of Teeth Do Frogs Have?

Are Greenhouse Millipedes Poisonous?

Why Is My Praying Mantis Brown? Natural Color & Causes

Does Epinephrine Raise Blood Sugar? The Body’s Response

Do Fleas Run? A Look at Their Incredible Jumping Power

Does Alcohol Affect White Blood Cell (WBC) Count?