The Paiche is a giant freshwater fish that's invading Bolivia's Amazonian rivers. A boon for local fishermen, biologists worry about its impact on local species. Show more
Discover 11,128,835 listings and 279,799 playable programmes from the BBC
The Paiche is a giant freshwater fish that's invading Bolivia's Amazonian rivers. A boon for local fishermen, biologists worry about its impact on local species. Show more