Modern birds are the most direct descendants of some of the most iconic dinosaurs to ever walk this planet. But can science really enable us to alter chicken embryos to resemble their mightiest ancestor: T-Rex?

Colombia has long been the world's largest producer of cocaine. A historic peace deal in 2016 was meant to reduce the amount of cocaine being produced by offering farmers alternatives to growing coca. But last year the UN estimated that its output was the largest since records began. Our World travelled to the Cauca Valley to find that farmers are now being caught between new criminal gangs with devastating consequences.

It’s spring at ZooTampa, and a bear cub is rushed to the zoo after being abandoned by its mother. A lemur experiences its first seasonal allergies.

In the 1990s, one million chimpanzees lived across Central Africa. Since then, habitat loss, hunting for bushmeat, and the exotic pet trade has caused their population to crash to just 200,000. But on Ngamba Island, a semi-wild sanctuary just off the coast of Uganda's Lake Victoria, a team of caregivers is dedicated to giving them another chance in life. Visit this remarkable safe haven, where victims–most arriving as orphaned babies–recover from mental trauma, form a new family, and learn how to be chimps.

As members of the feuding Capulet and Montague families, Romeo and Juliet should be sworn enemies, but they fall deeply in love and marry in secret. That very day, disastrous circumstances lead Romeo to fight and kill Juliet's cousin Tybalt, setting off a chain of events that culminate in tragedy. Juliet takes a potion to avoid the love match her parents have set up for her, and Romeo, believing she is dead, poisons himself. When she wakes from her deep sleep, Juliet finds the body of her love and is so distraught that she stabs herself, joining him in death.

The discovery of extraterrestrial life might face an impossible challenge: the physics of the universe itself; but using cutting-edge tech, experts might be on the verge of a groundbreaking find – and the evidence could already be in hand.

"This Is Korea" was commissioned by the Navy to explain an unpopular war to the American public, but Ford, always a poet first and a propagandist second, chooses to depict, not a heroic battle against godless Communism, but the toll war takes on its participants.

When instruments on the International Space Station suddenly malfunction every time it passes over a mysterious site in the Atlantic Ocean, experts investigate if this eerie behavior is more than just a tech glitch, but a prophecy of global doomsday.

When the writer Sir Terry Pratchett died in 2015, he was working on one last story - his own. But Terry's Alzheimer's meant he never got to finish it. This poignant and humorous film starring Paul Kaye as Terry finally tells the story of this hugely popular author, creator of Discworld, whose books have sold over 85 million copies worldwide. Back in Black reveals Terry's road to success was not always easy, from his troubled schooldays to being dismissed by literary critics, to his battle with Alzheimer's. But knighted by the Queen, adored by millions of fans and with a legacy of 41 much-loved novels - Terry Pratchett is still having the last laugh.

The F-35 is the most advanced fighter jet on the planet, and special access into the most expensive military program ever reveals how engineers use cutting-edge technology to outfit this 1,200 mile-per-hour aircraft with a state-of-the-art stealth system.

Einstein's Quantum Riddle tells the remarkable story of perhaps the strangest phenomenon in science – quantum entanglement. It's a story of mind-bending concepts and brilliant experiments, which lead us to a profound new understanding of reality.

The opioid epidemic has devastated America. But what is the situation here? A new report from Public Health England raises serious concerns about Britain's own relationship with painkillers. Dr Michael Mosley embarks on an immersive journey to Britain’s opioid frontline and meets patients struggling with addiction and GPs fighting a constant battle to help those suffering from chronic pain. He also uncovers worrying evidence of people abusing over-the-counter opioids and discovers how easy it is to buy strong opioids online.

Documentary about the ongoing battle between world-famous brands Pepsi and Coca-Cola to prove which one of them is top of the pops. The film looks at the secrets of each drink's success and also reveals the strategies and secrets behind the fierce contest between the long-time rivals, interrogating their canny marketing ploys and aggressive promotional techniques in their battle to win the never-ending cola war.

Katie Derham introduces highlights from the past ten years at the Royal Ballet. Presented on location in Covent Garden at the iconic Royal Opera House, Katie weaves the history of ballet through carefully curated excerpts from the past decade of performances and goes behind the scenes to see what it takes to be a dancer in the company of the Royal Ballet as they prepare to take to the stage.

A unique insight into the life and work of celebrated painter Paula Rego directed by her son, film-maker Nick Willing. Notoriously private and guarded, Rego opens up for the first time, surprising her son with secrets and stories of her unique life, battling fascism, a misogynistic art world and manic depression.