The lynx preys exclusively on the rabbit. Around 1990, it was on the verge of extinction because of sharp declines in rabbit populations, caused by myxomatosis. Conservation measures improved habitat, restocking of rabbits, so that the population increased from 100 to 326 individuals.
Populations of the Black rhino declined dramatically in the 20th century at the hands of European hunters and settlers. Thanks to persistent conservation efforts across Africa, their numbers have doubled from their historic low 20 years ago to 5000 today. However, the black rhino is still considered critically endangered due to the black-market trafficking of rhino horn.
The Hawksbill Turtle lives in the Pacific- the Atlantic- and the Indian Ocean. It has decreased in number due to poaching for its shell, used to make glasses frames, combs, brooches, and guitar picks. Now both import and export of the turtle is prohibited. But there is another problem: the sandy beaches where they lay eggs are dissapearing!