I think that the Planet Earth documentary that was really good and it is also sending a message to the person that is watchind the video.Like poaching some people still do that even though its aginst the law. Ice caps are melting so fast polar bears have no time to get to shelter. Some very interesting animals of the world are already endangered. Some people are already adapted to killing endangered animals. Some animals are very rare so you don't see them very often. For example snow lepaords are now scarce there's only 30 in the world or those rams we saw. That's the species you hardly ever see. Aprehension is like when we are killing to many animals so we are holding them down from surviving so they go extinct. If we conserve more energy we could save the earth. We will waste all natural resources if we don't start conserving. The Human Population will increase every single year. We will be sustainibly living for the rest of our lives.
and maybe some species wont go extint and also some species might also come back :):
