We often hear about species going extinct, but it's hard to grasp the scale of the problem. In just the last ten years, over 460 species have vanished forever . That's a sobering thought, isn't it? Today, let's look at some animals that are hanging on by a thread . Image credit: This visualization was created by visualcapitalist.com The World Wildlife Fund UK has put together a list of the most endangered animals. These creatures are so rare that scientists can actually count how many are left. Here's a breakdown: Rank Animal Number Left Where They Live 1 🦏 Javan Rhino 75 Java, Indonesia 2 🐆 Amur Leopard 100 China & Russia 3 🐅 Sunda Island Tiger 600 Sumatra, Indonesia 4 🦧 Tapanuli Orangutan 800 Sumatra, Indonesia 5 🦍 Mountain Gorillas 1,000 DRC, Rwanda & Uganda 6 🐬 Yangtze FinlessPorpoise 1,000 Yangtze River, China 7 🦏 Black Rhinos 5,630 Kenya,Namibia, South Africa & Zimbabwe 8 🦧 Sumatran Orangutan 14,000 Sumatra, Indonesia 9 🐢 Hawksbill Tur