Genetics and Evolution

How Long Is Your DNA Stretched Out?

What Major Group of Animals Dominated the Mesozoic?

Are Turtles Older Than Dinosaurs? An Evolutionary History

What Animal Group Has the Most Species?

What Is the Difference Between a Chromatid and a Chromosome?

Do Mitochondria and Chloroplasts Have Their Own Ribosomes?

Do Queen Bees Mate With Their Own Drones?

What Separates During Anaphase I of Meiosis?

Are Crows Evil? The Science Behind Their Behavior

Are Collard Greens Man-Made? A Look at Their Origins

Who Came Up With Gradualism in Geology and Biology?

Why Are 4-Leaf Clovers So Rare? The Scientific Reasons

What Happened to the Birch Tree Bark During the Industrial Revolution?

Is a Nucleotide Bigger Than a Chromosome?

Are Robins Eggs Blue? The Science Behind Their Color

What Is Gametic Isolation? A Key Reproductive Barrier

How to Build a Cladogram to Show Evolutionary Relationships

What Colors Can the Peppered Moth Come In?

Do Traits Skip a Generation? The Genetic Reasons Why

Why Do Some Men Have Red Beards But Not Red Hair?