Evolution & Origins of Life

What Type of Fossil Is a Nest?

Do Some Birds Have Teeth? The Evolutionary Answer

To What Are Fins Homologous in Tetrapods?

Is Allosaurus Related to T. rex?

What Are Galapagos Finches? A Look at Their Diversity

How Does Natural Selection Lead to Speciation?

What Is the Difference Between Speciation and Extinction?

Do Pteranodons Have Teeth? The Toothless Truth

Are We Related to Mushrooms? The Evolutionary Link

How Old Are Mushrooms? The Ancient History of Fungi

Do Dogs and Whales Have a Common Ancestor?

What Did T. Rex Evolve Into? The Bird Connection

How Is Directional Selection Related to Evolution?

Why Do Male Primates Practice Infanticide?

How Long Have Sloths Been Around?

Why Do Island Chains Provide Ideal Conditions for Adaptive Radiation?

Do Seals Have Legs or Flippers?

The Nearest Living Relatives of Crocodiles and Alligators

What Was Darwin’s Key Contribution to Science?

What Did Sea Turtles Evolve From?