Flying snakes are found in Southeast Asia, are mildly venomous, and are able glide through the air, flattening their bodies to provide lift as they travel from tree to tree.
The livestock supply chain emits 65 trillion grams of nitrogen into the environment every year, which exceeds the number calculated to represent the planetary boundary.
A new strain of swine flu with the potential to become pandemic has recently been identified by scientists in China. While it is not an immediate threat, the new virus has all of the signs of being highly adapted to infect humans, and should be closely monitored. If the virus mutates further, it could set off another global outbreak.