The BBC Nature Video Collection is a large library of video clips from the excellent BBC Natural History archive, many narrated by the legend that is Sir David Attenborough.
The video clips include some from the amazing Frozen Planet, the latest exploration into the remote and isolated polar environments. Some of the scenes are totally jaw-dropping. For example the Brinicle; icy finger of death.
An outstanding collection for educators. Plus Sir David Attenborough can make anything he narrates sound interesting.