The vultures saved from extinction
South Asian vultures started dying in huge numbers in the 1990s but no one knew why. They were on the verge of extinction before scientists worked out what was killing them. Bob Howard has been heari...
15 Apr 20218min
Fighting for Castro at the Bay of Pigs
On April 17 1961 a group of Cuban exiles launched an invasion of communist-ruled Cuba in a failed attempt to topple Fidel Castro. After 72 hours of fighting many of the invaders were captured or kill...
14 Apr 20218min
How a worm helped explain human development
After the discovery of the double-helix structure of DNA in the 1950s, South African biologist Sydney Brenner was searching for a model animal to help him tease out the genes involved in human behavio...
13 Apr 20218min
The US Supreme Court's first woman justice
In 1981, Sandra Day O'Connor became the first woman judge to be appointed to the US Supreme Court. She was nominated by newly-elected Republican president Ronald Reagan, who'd made the pledge to appoi...
12 Apr 20219min
Discovering the Jet Stream
The Jet Stream is formed by powerful high-altitude rivers of air which circle the globe and help determine our climate. The existence of these winds was first documented in Japan in the 1920s, but onl...
9 Apr 202111min
From Leningrad to St Petersburg
As the communist system in the former Soviet Union was collapsing in 1991, the people of Leningrad voted to drop Vladimir Lenin's name abandoning the city's revolutionary heritage and returning to its...
8 Apr 20219min
David Attenborough's first expedition
In 1954, the BBC broadcast a new television programme in Britain. It was called Zoo Quest and it launched the career of a man who has since brought the natural world into millions of homes around the ...
7 Apr 20219min
Mexico's female serial killer
Former female wrestler Juana Barraza was found guilty in March 2008 of murdering at least eleven elderly women in Mexico city over a period of seven years. Barraza, who became known as the "little old...
6 Apr 20219min
