John Cancalosi / Western diamondback rattlesnake (Crotalus atrox), defensive rattling, Arizona, USA, April.
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John Cancalosi / Group of gravid female Timber rattlesnakes (Crotalus horridus) basking before giving birth, Pennsylvania, USA, July.
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John Cancalosi / Red-eared slider (Trachemys scripta elegans) in rain, Louisiana, USA.
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John Cancalosi / Black crowned night heron (Nycticorax nycticorax) preening, Louisiana, USA.
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John Cancalosi / Black crowned night heron (Nycticorax nycticorax) preening, Louisiana, USA.
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John Cancalosi / Black crowned night heron (Nycticorax nycticorax) preening, Louisiana, USA.
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John Cancalosi / Pair of Horseshoe crabs (Limulus polyphemus) mating on the shore, turned upside down by waves and strugling to turn the right way up, Delaware bay, Delaware, USA. June.
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John Cancalosi / Male Gambel's quail (Callipepla gambelii) displaying in a bush, Arizona, USA, April.
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John Cancalosi / Eastern american chipmunk (Tamias striatus) feeding, New York, USA, August.
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John Cancalosi / Close up of a container full of Sea lampreys (Petromyzon marinus), captured for culling, New York, USA, April.
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John Cancalosi / Black-capped chickadee (Poecile atricapillus) building nest, New York, USA, April.
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John Cancalosi / Black-capped chickadee (Poecile atricapillus) building nest, New York, USA, April.
