What are bio-bridges and why are they so important in animal conservation?

File photo of Bourret’s Box Turtles in captivity. These critically endangered animals are poached and sold to China to make traditional medicine.

“I have never been in a forest with four species that are about to go extinct,” said Roger Wilson of the Khe Nuoc Trong (KNT) forest in Quang Binh Province, north of Hue in central Vietnam.

This fellow has been doing conservation work for 45 years of his life in three different continents, so what he says carries weight. The news gets worse: altogether, there are 40 other species, slightly less threatened, but still endangered.