Up Next
Back to Show
Islands of Wonder
The History Hidden in Madagascar’s Underwater Caves
In Madagascar’s remote western desert, divers explore a hidden pool of water. Over 160 feet below the surface, this incredible underworld opens to over seven miles of connected tunnels and some of the largest underwater chambers in the world. Within these caves lies a graveyard carrying remains of now-extinct animals in Madagascar, including a lemur that once grew to the size of a gorilla.
Support Provided By
Unlock with PBS Passport
54:39
The most remote island chain on Earth, Hawaii is a haven for wildlife.
Unlock with PBS Passport
54:39
In Borneo, the struggle to survive is the secret to its great diversity of life.
Unlock with PBS Passport
54:40
Explore Madagascar, the oldest island on Earth, where life has evolved in unique ways.