The animals most at risk from around the world. Have you seen a Sumatran tiger? Or a Chinese giant salamander? Sadly, hardly anyone ever has and that's because very few of these animals are left on the planet. But you'll find them here, along with a lot of other animals on the world's most endangered list. All these creatures face a high chance of ending up extinct within the next 50 years - unless they can be saved by the desperate conservation measures underway.