In Borneo, pitcher plants do more than trap insects. Their leaf-made vessels open a journey through some of nature’s strangest partnerships — from diving ants living inside carnivorous plants to tree shrews using pitchers as feeding stations and latrines, and bats finding plant-made roosts by echo while delivering nitrogen in return.

Narrated with a synthetic voice.

A giant armored mammal once roamed the Pampas beneath what is now Buenos Aires. Glyptodon opens a journey through the armadillo family’s remarkable defenses — from folding into a ball and disappearing underground to rigid shells, strange grinding teeth, and tail clubs built to strike.

Narrated with a synthetic voice.

Seven fossil monkey teeth turned up during work on the Panama Canal. About twenty-one million years old, they come from long before North and South America were joined by continuous land, opening a journey into chance crossings, the making of the Isthmus, and the great exchange of animals between the Americas.

Narrated with a synthetic voice.

A palm-sized Triassic reptile found just outside New York opens a journey through animals that turn falling into travel. Lizards spread ribs, mammals stretch skin, frogs open webbed feet, snakes flatten their entire bodies, and flying fish carry speed from water into air.

Each solves the same problem differently: how to turn height—or speed—into a route.

Narrated with a synthetic voice.

A giant fossil bird turned up during construction at Charleston International Airport. With a wingspan of about twenty-one feet, Pelagornis sandersi opens a journey into takeoff, soaring, ocean wind, and the ancient coastal world beneath modern Charleston.

Narrated with a synthetic voice.

The famous teeth of Smilodon only worked because the rest of the cat worked with them. La Brea’s extraordinary fossil record reveals the jaws, shoulders, forelimbs, prey, and landscape behind one of the Ice Age’s most recognizable bodies.

Narrated with a synthetic voice.

A fossil skull in Klagenfurt was once taken for the remains of a dragon and helped shape the city’s famous fountain. Give that skull its body back, and it becomes a woolly rhinoceros built for cold, open ground and winter grazing.

Narrated with a synthetic voice.

Mammoths reached California’s Channel Islands by swimming. Once there, generations of giants became something very different: adult mammoths scarcely taller than a person, shaped by the costs and opportunities of island life.

Narrated with a synthetic voice.