Giant Galapagos tortoises were in danger. There were only 15 of them in the 1960s. They were dying because wild goats ate their food. Conservationists helped them. Now, there are over 1,000 living in the wild. It is a success story for nature. Many tortoises can now live without our help.
There were 250,000 giant tortoises 500 years ago. Hunters almost killed them all. Giant tortoises can weigh 250kg and live for 100 years. One lived for 170 years. Giant tortoises live very simple lives. They can nap for 16 hours a day. Next year, a small island will get 200 tortoises. This could be another success story.