Genetics and Evolution

What Is a Complementary Strand and Why Is It Important?

Where Did the Merino Sheep Originate?

Are There Any Birds That Have Teeth?

Approximately How Long Ago Did the First Plants Appear on Earth?

What Is the Relationship Between DNA and Chromosomes?

Why Do Humans Have Big Butts? A Scientific Explanation

Who Carries the Hair Gene: Is It From Your Mom or Dad?

Is aa a Genotype or Phenotype?

What Were the First Vertebrates on Earth?

Do Hybrid Bluegill Reproduce? What Pond Owners Should Know

Do Identical Twins Have to Be the Same Gender?

Why Is It So Hard to Recover Fossils?

Are Pterodactyls Still Alive? The Scientific Facts

When Fish First Walked: The Evolution of Tetrapods

What Is Genetic Rescue and How Does It Save Species?

What Are the Flying Dinosaurs? The Surprising Truth

Why Do Chimps Smile? The Truth About Their Expressions

Is DNA Present in Both Plant and Animal Cells?

Why Is the Sonic Hedgehog Gene Named That?

What Dinosaurs Actually Lived in Tennessee?