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From an orca mother teaching her young to hunt blue whales to a Banggai cardinalfish protecting his young inside his mouth, ocean parents master dedication and intelligence to raise their young.

Exploring the revolutionary engineering behind the Eiffel Tower in Paris, which smashed the record for the tallest structure on Earth when it was completed in 1889.

Presenting a round-up of the most recent news and developments from across the world.

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.

Animal parents become masters of their environment in order to raise their young in the complex jungle; an orangutan spends eight years teaching her baby the ways of jungle living; a crab creates the perfect home for her crablets.

New evidence sheds light on Turkey's Gobekli Tepe, the world's oldest temple, and how archaeologists think about the roots of civilization.

Explorers, archaeologists and scientists combine technology and ancient texts to prove that Hannibal's army crossed the Alps to launch an attack on Rome.

A daily news summary from Europe with anchor Brent Goff.

News. Reporting on the day's international news from London and from BBC correspondents around the world.

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

When a local man tries and fails to break into the safe at a Port Devine pub, the police wonder what he was after; the officers discover that ex-criminal Aidan Hunter is desperate to get into the same safe.

Sign off.

A foot strengthening workout.

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Lotta is determined to show Skyler that she is more than just "headphone girl"; the new kid in school causes a hullabaloo on the playground.

Daniel learns that it's important to try to go potty before leaving the house; Daniel learns that sometimes when your tummy hurts, it could mean that you have to go potty.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

When Telly learns that earthworms are invited to Abby's garden party, his friends help him feel less scared.

The Wombats are excited for "Show and Tell" but Super might be too busy to attend; Louisa decides the Treeborhood needs a way to announce fun events.

Bob Dog imagines how others feel; Bob Dog makes a difficult choice for the Best Ball Fest.

Rosie and Javi get a new book, but it's in a different language; Rosie tries to form a club with her friends.

While helping Ms. Beaver construct a community garden the kids learn about rocks; Elinor tries to make her special dumplings all by herself.

On Alma's great-grandmother's 100th birthday, Alma wants to find Bisabuela the perfect gift; even though she can think of all kinds of things that Bisabuela likes, none of them are quite right.

Molly teaches tourists how to fish responsibly; Molly helps Randall hide his long hair.

Ravi Shankar shows Yadina that it can feel good to share her culture; Babe Didrikson Zaharias shows Yadina that practice can help her do difficult things, like making the basketball team.

Visiting the Acropolis; classic souvlaki; custom-made Greek sandals; a rail bike ride along the Aegean Sea.

Eric Hanson treks though the breathtaking landscapes of Helena, Montana.

Exploring the hostile world of the desert and how plants survive by using weapons, camouflage and surprising alliances with animals.

Hawaii, the most remote island chain in the world, is home to a wealth of wildlife, from humpback whales to waterfall-climbing fish.

Every year, up to 80 polar bears gather on the frozen shores of Barter Island on the Arctic coast of Alaska.

Presenting a round-up of the most recent news and developments from across the world.

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.

The culture and traditions of Native Americans.

The changes, misconceptions and current state of Historically Black Colleges and Universities (HBCUs).

Removing and saving the kitchen cabinets for reuse; tackling the chimney teardown; foundation plans.

Upgrading a home to a solar-assisted split heat pump water heater; three common houseplant pests and simple tricks to banish them; installing an attic ladder.

A daily news summary from Europe with anchor Brent Goff.

News. Reporting on the day's international news from London and from BBC correspondents around the world.

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