WSEC-DT

The lion pride males are injured and the mothers with cubs are left vulnerable after an attack; Xudum, the female leopard, takes risks to find a mate.

Tracking how the polar world is transforming, from scaling jagged peaks to descending deep into the ice sheet.

The philosophical, cultural and political forces driving the global artificial intelligence boom.

Mapping the roots of actress Kate Burton and media mogul Barry Diller.

Fred discusses death when his fish dies.

Vicita asks D.W. and Arthur to re-create the story from her lost book; Prunella takes on more extracurricular activities.

A baby elephant almost destroys the Tortuga headquarters.

Benny's toy penguin is swept away by melting snow, transforming a day of sledding into an urgent rescue mission.

Lyla and Everett make a lemonade stand to raise money for the animal shelter; Lyla and Everett learn Double Dutch to become part of a neighborhood crew.

Lotta is frustrated learning a new dance, but realizes it is ok to experience music in her own way; Sheldon worries about telling Carl that he doesn't want to play pirates anymore.

Daniel and Miss Elaina meet Prince Wednesday's cousin, Chrissie, who needs help walking; while playing dress up at school, Daniel learns not everyone has a tail like his.

Phoebe, Jay, Grandma Annie and Pete create the family's first recipe for Sunday greens; Phoebe and Jay are excited about their first campout in the courtyard.

Antigravity balls; poised pennies; centripetal spinner.

The team must collect, organize and analyze data to find which castle Hacker is holding Dr. Marbles.

The Musicians Hall of Fame induction ceremony includes performances and reminiscences from Vince Gill, Don McLean, Ray Stevens, Marty Stuart and His Fabulous Superlatives and Billy F. Gibbons; host Phil Vassar.

Following a spinal cord injury, Tiler Peck fights her way back as an elite dancer and choreographer with the New York City Ballet.

Social, political and economic trends of American agriculture.

Margaret Hoover leads interviews and debates.

Former FBI agent Frank Figliuzzi talks about his book, "Long Haul: Hunting the Highway Serial Killers," and his career as an investigator.

Dalmatian Coast; hiking through Plitvice Lakes National Park; Zagreb; Istrian Peninsula.

Ozark Mountain charm blends with university energy in Fayetteville, Ark., a city rich in music, food and tradition.

An Edward Onslow Ford bronze; a 1962 left-handed Fender Stratocaster; Goldsmith Chandlee surveyor's compass circa 1790.

David Attenborough explores plants in the tropical rain forest.

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

Author and historian Marie Arana explains how Spain was involved in the colonies' fight for independence.

The lion pride males are injured and the mothers with cubs are left vulnerable after an attack; Xudum, the female leopard, takes risks to find a mate.

When a man is killed at her university reunion, Becks finds herself on the wrong side of an investigation.

As Eliot's health deteriorates, he accuses his family of murder; Atticus Pund closes in on his prime suspect.

Cushla and Michael begin a secret relationship that changes everything; as violence and scrutiny close in, Cushla is forced to risk everything for a love that defies the divide.

Country musician John Berry has earned acclaim for hits like "Your Love Amazes Me" and "Standing on the Edge of Goodbye"; banjo master Mean Mary; banjo player Thatcher Wallace.

Guitar and banjo player Amythyst Kiah joins Sarah Darling and Nicole Witt.