Evolution & Origins of Life

Do Fish Walk? The Science of Walking Fish

Animals That Lived With Dinosaurs That Are Still Alive

Are There Any Predecessors or Extinct Species of Dogs?

Do Bonobos Have Tails? The Evolution of the Tailless Ape

Why Is Nature So Cruel? The Science of Suffering

What Did Sharks Look Like 400 Million Years Ago?

In Which Era Did Mammals Emerge?

Are Apes in the Stone Age? A Look at Their Tool Use

Why Do Giraffes Have Long Legs?

What Is Anatomical Adaptation? Definition and Examples

What Major Group of Animals Dominated the Mesozoic?

Why Are Male Birds More Colorful Than Females?

What Is the Difference Between Genus and Species?

Why Are Poisonous Frogs So Colorful?

Why Are Humans the Only Animals That Wear Clothes?

Are Ants Related to Wasps? Their Evolutionary Link

Is a Dire Wolf Actually a Wolf?

What Did the Chicken Evolve From?

What Color Was Archaeopteryx?

How Dr. Allison Tested the Sickle Cell and Malaria Hypothesis