Conclusion
By now you have learned that many animals became extinct. Some died out for natural reasons, but others became extinct because of human acitivities.
Right now, as you are reading this, many animals are disappearing or there are only a few specimens left.
Find out more about what you can do to help the preservation of fauna and biodiversity around the world watching these videos:
This is a video of animals that are in danger of extinction
This is a video about the destruction of the Amazon Rainforest and the animal species that live there