Extinct animals that we will never see again ...

A recent study on the state of the wildlife in the world reveals that by 2020, two-thirds of the species in this category are likely to have become extinct.

Does that seem to be an unlikely percentage? Well, just think since 1970 to this day, that tragic loss already amounts to 58% of the wildlife species in the world.

In this video, we show you rare film shots of some animal species that have become extinct since the beginning of the twentieth century to our present day. We should remember that every loss changes the delicate balance of the food chain which also includes us human beings.

via theguardian.com