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Archaeological evidence suggests that the legend of King Arthur began in a 5th-century trading village following the departure of the Romans.

From pythons in Bangkok to otters in Singapore, a look at the extraordinary ways wildlife is making itself at home in the world's cities.

Panelists explore the challenges and dilemmas around online sports gambling and its impact on young men.

Research into the ancestry of singer Lea Salonga and actress Amanda Seyfried reveals relatives who survived heart-wrenching ordeals.

The basics of healthy rotations, which help cleanse organs, reinvigorate the spine and refresh one's perspective.

Increasing bone strength with an all-standing workout.

The Wild Kratts use Aviva's Time Trampoline again, this time to visit the extinct Tasmanian Tiger.

The Hunters learn how temperatures can affect outdoor plants and gardens.

Lyla and a new friend build a spaceship; Lyla learns her sisters can predict what the other wants, so she tries to do the same with Luke.

Carl and Nico argue over who gets Arugula as their magician's assistant; Sheldon tries to help Carl become a good listener.

Daniel and Dad help Prince Tuesday at the market; Daniel is excited to plant flowers but is upset when he has to do the weeding.

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

While Abby and Elmo work together to find a lost Bubble Bug, Grover and Cookie Monster stay behind to take care of the fairy garden's magical beasties.

Daniel and Dad help Prince Tuesday at the market; Daniel is excited to plant flowers but is upset when he has to do the weeding.

Duck enjoys "me time" at the beach; the pals like different things at Donkey's sleepover.

It's Recycling Day, so Rosie becomes a recycling kid, but she accidentally recycles Crystal's art project; when Rosie and Javi find a monarch butterfly in the backyard, they try to figure out what it needs so it can flutter again.

While observing butterflies and caterpillars, the kids realize they've never seen a baby butterfly; Elinor, Ari and Olive put on a circus for their friends.

Alma and Rafia try to give away rubber bands; Alma and Rafia think they've invited too many people to Safina's bake sale.

While Abby and Elmo work together to find a lost Bubble Bug, Grover and Cookie Monster stay behind to take care of the fairy garden's magical beasties.

Lyla and a new friend build a spaceship; Lyla learns her sisters can predict what the other wants, so she tries to do the same with Luke.

The Wild Kratts use Aviva's Time Trampoline again, this time to visit the extinct Tasmanian Tiger.

Spanish earrings and a dragonfly brooch; Carleton Watkins Yosemite album; an 1840 Alfred J. Miller painting.

The many species of raptors, from giant eagles to miniature falconets, and how they survive bitter winters, learn to hunt and undergo epic migrations.

How water may have driven the evolution of man and created the earliest civilizations; whether the Earth's water supplies can guarantee the future of humans.

Hunters and fisherman enjoy the great outdoors in Arkansas.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Phryne has been chosen to lead the flower maidens in the annual Flower Parade; a body of a young girl is washed up on the beach.

When a bride-to-be, Jenny, dies on her hen week, Humphrey and the team suspect murder; Humphrey has a hard decision to make in letting Camille go to Paris.

Twenty-four hours a day, the latest national and international stories as they break.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

A woodland scene with tall fir trees and a sun-dappled path.