The banana, the world's most popular fruit, is in trouble.
The potassium-rich yellow food is facing extinction due to the spread of a deadly fungus.
Almost every banana we eat today comes from the Cavendish breed developed in the 1950s.
Before then, the most commonly consumed strain was the Gros Michel.
But in the 60s, a fungus known as Panama disease wiped out the Gros Michel.
Now, the much-loved lunchbox staple is once again under threat.
Returning under a different name, Tropical Race 4 (TR4), the fungus is said to be even more deadly than that which destroyed the Gros Michel.
The disease is spreading and is a serious threat to livelihoods and food security worldwide.
