The ten WWF stamps, plus a miniature sheet, will go on sale on March 22.
The ten 1st class stamps do not feature native British animals, in a departure for Royal Mail.
The animals, each of which is in a conservation programme run by the WWF, are face on to the camera.
The stamps feature: African elephant, mountain gorilla, Siberian tiger, polar bear, Amur leopard, Iberian lynx, red panda, black rhinoceros, African wild dog and golden lion tamarin.
The miniature sheet features a spider monkey, a hyacinth macaw, a poison dart frog and a jaguar, in a collage by Janice Nicholson.
All of the stamps feature the WWF logo. The 1st class in the miniature sheet bears the Europa logo, as Royal Mail believes this fulfills this year's 'Forests' theme.
By Julia Lee
by Julia Lee
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