Biodiversity is the planet's full range of life forms. Humans are only one species among millions and biodiversity benefits humans and other species alike.

Experts discuss why we need biodiversity. This includes food, medicines, industrial products, gene pool preservation, biological services such as pollination and cleaning water. We also have an ethical responsibility of stewardship over other species on the planet.

This clip is from:
Bitesize Secondary, Darwin
First broadcast:
11 March 2009

Ask students to write down all the scientific terms that are used in the clip, focusing on the ones that are unfamiliar to them. You could provide a list if appropriate. Ask students to research the meaning of each of these terms. You could also provide students with a list of organisms or ecological services that are mentioned in this clip for them to research.