David Kjaer / Blood-vein moth (Timandra comae) Wiltshire, England, UK, June.

Lorraine Bennery / Caterpillar Blood-vein moth (Timandra griseata), Isere, France, April.

David Kjaer / Blood-vein (Timandra comae) Wiltshire, UK

Jussi Murtosaari / Blood-vein moth on leaf (Timandra comae) South Karelia, southern Finland, June.

Christian Ziegler / Leaf-nosed Bat (Phyllostomidae) flight muscles and blood vessels in the wing membrane, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Christian Ziegler / Leaf-nosed Bat (Phyllostomidae) wing showing veins, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Robert Thompson / Blood-vein moth (Timandra griseata) Nottingham, UK, August

Robert Thompson / Blood-vein moth (Timandra griseata) on fallen leaves, Nottingham, UK, August

Michael & Patricia Fogden / Looper Moth (Geometridae) camouflaged against lichen-covered tree trunk, cloud forest, Costa Rica

Michael & Patricia Fogden / Looper Moth (Geometridae) camouflaged against tree trunk, Monteverde Cloud Forest Reserve, Costa Rica

Ingo Arndt / Looper Moth (Geometridae) caterpillar camouflaged as a twig on branch

Ingo Arndt / Looper Moth (Geometridae) caterpillar camouflaged as a twig on branch