Genetics and Evolution

What Is a Behavioral Trait? Definition and Examples

How Many Strands Does an RNA Molecule Have?

Do Twins Get the Same Diseases?

Are King Cobras Actually Cobras?

Why Do We Have to Get Old? The Science of Aging

Is Bladder Cancer Inherited? Understanding Genetic Risk

How Many Steps Did Our Ancestors Walk Each Day?

When Did the Titanoboa Live and When Did It Go Extinct?

What Was the Second Animal on Earth?

What Dinosaurs Lived in Mexico? Major Fossil Discoveries

Which Lobe-Finned Fish Are Alive Today?

How Long Did Our Ancestors Breastfeed Their Children?

Is Having a Boy or Girl Really 50/50?

What Is Biogenesis? The Principle That Life Comes From Life

What Is the Rarest Color in Nature and Why?

Are Unicorns Real Animals? The Science Behind the Myth

What Determines Egg Shell Color?

Is Acne Inherited From Your Mother or Father?

Where Was the First Megalodon Fossil Found?

How Does a Pedigree Chart Differ From a Family Tree?