Anatomy and Physiology

How Long Do You Have to Be Asleep to Dream?

How Many Brains Does an Octopus Have?

Do Jellyfish Have a Brain? Inside Their Nervous System

Do Scallops Have Eyes? How Their Vision Actually Works

Do Grizzly Bears Hibernate in the Winter?

How Long Can a Fish Breathe Out of Water?

What Causes Nipples to Get Hard? A Biological Look

Are Pythons Poisonous or Venomous?

What Is Biological Oxidation? The Process in Living Cells

Can Owls See Color? The Science of Their Vision

Do Ants Bite or Sting You? How to Tell the Difference

What Are Five Animals That Have No Teeth?

How Much Does a Uterus Weigh in Lbs?

What Happens During G1 Interphase?

The Lizard That Can Walk on Water: What Is It & How?

What Fills the Hollow of Most Bones?

If Sharks Stop Swimming Do They Die?

Do Bed Bugs Like the Heat? The Truth About Temperature

What Kind of Bones Are the Carpal Bones?

Are Geese Related to Ducks? The Family Connection Explained