The adorable, tiny turtles can carry deadly diseases, and grow up to outcompete native species.
The legacy of homesteading has created a curious kind of invasive species.
Rhinos were declared extinct in Zambia in 1998, ravaged by poachers. Today they are back and living in the wild once again.
The news has unsurprisingly prompted outrage from animal rights activists and critics across the world
Researchers will use tiny transmitters to track the movement of the giant African swallowtail.
A plan to reintroduce endangered animals to the wilderness in Italy, Spain and Eastern Europe is under way
There are more than 400 million fewer European birds now than there were 30 years ago.
An antidote to the sorrow of the Lonesome George saga.
Vultures make humans uneasy but a healthy population is crucial, yet under threat from new livestock drug
The man who saved the African elephant in the 1980s is returning to the fray, and he isn't afraid of anything