Billie Eilish sings powerfully and emotionally about the abuse of power in a relationship in which a person takes advantage of someone much younger. She sends out her clear message to the abuser in hope of inspiring change.

The song "If I Were a Boy" from Beyoncé’s album I am… Sacha Fierce highlights misunderstanding and mistrust between the sexes, and strongly questions male behavior. Written after the breakup of a romantic relationship, the singer imagines how things might be different if the gender roles were reversed.

"Supalonely" ("Supa" is how some people pronounce the adjective "super") is a song by New Zealand singer Benee featuring American singer Gus Dapperton. Rolling Stone writes: "Benee may have written “Supalonely” about a toxic relationship, but it’s evolved into a perfect alt-pop quarantine anthem."

There's been some bad news for the Great Barrier Reef, with experts declaring another mass bleaching—the fifth in just eight years. We find out what coral bleaching is and how it's impacting Australia's World Heritage-listed wonder.

This is the music video for “I Know Your Name” from the album “What’s Mine is Yours” by the New York/Berlin band Bee and Flower, featuring singer Dana Schechter and directed by Josh Graham.

The Berlin/New York based band Bee and Flower, led by singer and bassist Dana Schechter, plays their haunting song "Swallow Your Stars" in a dilapidated church outside of Prague.

Bee and Flower is a band founded in New York City by singer-songwriter, bassist, animator, illustrator, composer and producer Dana Schechter. Here's a live performance of their song "Twin Stars."

The BBC looks at a new and innovative renewable energy invention, Kite Power Solutions. It is estimated that 30 kites could provide electricity for 75,000 homes.

Justin Bieber shows BBC Radio 1 how he spends his free time at home.

Grimmy rigged up Harry Styles to a heart monitor to see what images would cause an increased heart rate. Will it be Ryan Gosling, a briefcase full of money, Zayn Malik, or purple shoes?

People are increasingly interested in seeing animals in natural settings, so traditional jail-like zoos are giving way to open-plan zoos, and to eco-tourism.

Barbary macaques are among the most popular tourist attractions in Gibraltar. The apes have a taste for junk food, which enables tourists to see them up close and allows scientists to easily capture them for research.

We leave the macaques in Gibraltar to travel to the Galapagos Islands to learn about marine and land iguanas.

The segment focuses on the alien striped iguanas of the Galapagos Islands, albinism in a variety of animals, and the peppered moth.

The last segment focuses on Australia. We visit the Warrawong Earth Sanctuary, where there are breeding programs to reintroduce such indigenous animals as bandicoots and quolls, creatures that came close to extinction.