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How the rise of sexual reproduction fuels diversity, pushing life to specialize and shaping everything from tiny single-celled organisms to towering ostriches.

How pigeons overcome the challenges of city life and thrive alongside people in London and New York.

Blues rock musician Gary Clark Jr. performs highlights from "JPEG Raw"; Black Pumas present selections from "Chronicles of a Diamond.".

Scotland Yard investigates a series of murders of heavily-insured men; the crew prepares for a special celebrity guest.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Margaret Hoover leads interviews and debates.

Mr. McFeely delivers a book with a misprint.

Buster receives chocolates in the mail and tries to figure out who sent them; James receives a toy lamb that is said to give its owner special powers.

Alma and Rafia want to make an animal photo book, but the animals won't cooperate; Alma and Rafia volunteer to help Safina after she hurts her arm.

The kids learn what colors make up a rainbow just in time for a Mother's Day surprise.

Lyla and Stu make a mess decorating cupcakes; Lyla tries to retrieve Everett's lost coin.

Forrest makes too many plans on the same day; Carl and Arugula build an epic marble run but fail to get the marble to run.

Daniel is excited to share his book at show and tell; Daniel and Katerina have a tough time waiting at a restaurant.

The Shuffler traps the Super Readers in a high-tech maze; Mr. More and The Eraser wage a battle of opposites.

Phoebe and Jay use Miss Jean's field guide to identify their new butterfly friend; Phoebe gets courage to perform at the talent show.

Elmo and his friends prepare as a big storm approaches Sesame Street.

It's a busy time for Arthur as he and his family prepare for Thanksgiving while the elementary students prepare for the annual Thanksgiving parade.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

The culture, people and issues of eastern New Mexico.

Exploring the issues, people and events shaping New Mexico and the Southwest.

Presenting local topics of interest and regional issues.

Social, political and economic trends of American agriculture.

A garden with a unique design, interesting plant palette and ecological tips.

A visit to Crane Dance Farm reveals the value of pasture-raised food; local flowers are made into bouquets; roses from the farmers market.

Transforming a treehouse into a floral wonderland.

For the first time in nearly two hundred years, the Caddo return to their ancestral homeland in East Texas in an effort to revive their endangered pottery tradition. Chase Kahwinhut Earles, a renowned Caddo potter and artist, leads a diverse group of Caddo in digging the clay, making the pots and pit-firing the ceramics - all in the traditional way.

How the rise of sexual reproduction fuels diversity, pushing life to specialize and shaping everything from tiny single-celled organisms to towering ostriches.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Whether there are "general principles" that encompass all sciences, that explain even beyond the sciences.

When Jasper's former mentor is murdered, a suspect is arrested but the truth hides darker secrets; Jasper risks everything to expose the killer.

Maigret and his team close in on Olga Borysenko's murderer; however, the investigation lands Maigret in more danger.

The British police join forces with the DEA to take down the international money laundering operation; in Tenerife, John Palmer has an unwelcome visitor as the pressure builds.

The Crawleys are implicated in a scandal that threatens to engulf the monarchy. Robert goes to great lengths to protect the royal family, and his own.

Renowned Irish musicians perform live across Ireland's scenic landscapes.