'Frozen ark' collects animal dna

Idea of the project is to preserve material for future generations

A British-led project called "Frozen Ark" is preserving the DNA of endangered species before they disappear as the Earth undergoes what scientists are calling the sixth mass extinction.

"Many of these species are going to go extinct before we even know they exist," says John Armour, Professor of Human Genetics at the University of Nottingham, which is host to the project.