1 Greenpeace:

Direct action group which clashes with whalers on the high seas.

2 Royal Society for the Protection of Birds: High-profile organisation with millions of members worldwide.

3 Friends of the Earth: International network founded as an anti-nuclear group.

4 Royal Society for the Protection of Cruelty to Animals: group dedicated to helping sick and injured animals.

5 World Wide Fund for Nature: Save the planet organisation with the giant panda as its logo.

6 Sea Shepherd: Based in America, it prides itself on being more aggressive than Greenpeace.

7 Scottish Environment Protection Agency: Public body whose role is to improve the Scottish environment.

8 Wildlife Conservation Society: Formed in America to promote the study of zoology.

9 Scottish Natural Heritage: Government body responsible for nature reserves and conservation matters.

10 Historic Scotland: Public body responsible for historic monuments in Scotland.