Nigel Cattlin / Apple sawfly (Hoplocampa testudinea) larva inside damaged Apple (Malus domestica) fruit, in cross section.
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Heather Angel / Peach leaved bellflower (Campanula persicifolia) dissection, petals removed to show how stamens transfer pollen to style via secondary pollen presentation in bud stage. Focus stacked.
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Heather Angel / Himalayan balsam (Impatiens glandulifera), dissection of flowers. Male phase above, downward projecting stamens release pollen onto backs of bumblebees and honey bees. Female phase below with downward...
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Ingo Arndt / Median wasp (Dolichovespula media) nest, cross section showing combs. Hessen, Germany.
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Piotr Naskrecki / Oyster Crab (Pinnotheres ostreum) living in gills of oyster, Cape Neddick, Maine
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Ashley Cooper / Truck hauling freshly cut timber for biofuel in Grizedale forest, Lake District, England, UK, May 2013.
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Ashley Cooper / A forwarder, a specialist machine for cutting timber for biofuel in Grizedale Forest, Lake District, England, UK
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Juan Carlos Munoz / Scots pine (Pinus sylvestris), certified timber. Laguna Negra y Circos Glaciares de Urbion natural park, Soria province, Castilla y Leon, Spain. November, 2017.
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Jeff Foott / Cross section through trunk of tree infected with Mountain pine beetle larvae (Dendroctonus ponderosae). Note dark stain from fungus transported by the beetle. Grand Teton National Park, Wyoming, USA...
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Jeff Foott / Cross section through trunk of tree infected with Mountain pine beetle larvae (Dendroctonus ponderosae). Note dark stain from fungus transported by the beetle. Grand Teton National Park, Wyoming, USA...
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chicks trying to cross a rough section of ice on their way to the sea, Adelie Land, Antarctica, January.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chicks struggling to cross a rough section of ice on their way to the sea, Adelie Land, Antarctica, January.
