
Africa: Cradle of Modern Humans

Tulip Mania: Why the Rarest Tulips Were So Valuable

Sexual Reproduction: More Than Two Sexes

Why Disease Killed More Soldiers Than Battle

Energy in the Human Body and Cells

Tardigrades vs Space: Water Bears in the Void

Climate Change and Moving Species

Communication: How Animals Exchange Information

Mitochondrial Eve: What She Really Means

Hawaii’s Cliff Gardeners: Saving Brighamia

Cells: The Surprising Inner Compartments of Bacteria

Toddler Self-Discovery: Pointing and the Mirror Test

Extinction and Survival

Reproduction and Synthetic Life

Cells: How One Cell Becomes a Human Body

Humans: Engineered for Endurance

Human Mating: Why Partners Often Resemble Each Other

Idaho Beaver Drop: When Beavers Parachuted Into the Wild

Life in the Universe: Where to Look

Delayed Postpartum Period

Plant Partnerships

Bioethics and Moral Status

Post-classical History: How Plague Reshaped the World

Fire and the Cooking Hypothesis in Human Technology