Tony Heald / Hanuman langur (Semnopithecus entellus) eating coconut husk, Bandhavgarh National Park, India. March.

Ashley Cooper / Maize (Zea mays) husks that are used as a renewable fuel to burn on household stoves, northern China, March 2009.

Ashley Cooper / Maize husks that are used as a renewable fuel to burn on household stoves, northern China, March 2009.

Philippe Clement / Fallen green husks / walnuts of the Eastern black walnut (Juglans nigra) tree on the forest floor, native to eastern North America, Belgium, November.

Martin Gabriel / Vanilla (Vanilla planifolia) growing in plantation, the soil protected with coconut husks, La Digue Island, Republic of Seychelles

Yukihiro Fukuda / Walnut (Juglans ailantifolia) husks dropped by feeding Japanese squirrel (Sciurus lis) Mount Yatsugatake, Nagano Prefecture, Japan, February. Endemic species.

Tim Laman / Husks of Neesia fruits and leaf litter cover the floor of lowland rainforest, Gunung Palung National Park, Borneo, West Kalimantan, Indonesia

Juergen Freund / Bagging up rice that has had its husks removed, the husk is striped from the rice by passing the rice through two spinning rubber roles, one roll spinning faster than the other. Camarines Sur, Luzon,...

Juergen Freund / Bagging up rice that has had its husks removed, the husk is striped from the rice by passing the rice through two spinning rubber roles, one roll spinning faster than the other. Camarines Sur, Luzon,...

Juergen Freund / Farmer carrying newly threshed rice in a sack. This will then be brought to a milling area to take out the rice husks, Camarines Sur, Luzon, Philippines 2008

Juergen Freund / Newly threshed rice. This will then be put in a sack and brought to a milling area to take out the rice husks. Camarines Sur, Luzon, Philippines 2008

Juergen Freund / Newly threshed rice. This will then be put in a sack and brought to a milling area to take out the rice husks. Camarines Sur, Luzon, Philippines 2008