Tiny images - Joel Sartore

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INV003-00335

An unidentified adult forest pseudoscorpion (Microbisium sp.) from the Okefenokee Wildlife Refuge Boardwalk area in Folkston, GA.

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INV003-00334

An unidentified adult forest pseudoscorpion (Microbisium sp.) from the Okefenokee Wildlife Refuge Boardwalk area in Folkston, GA.

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INV003-00315

A common house spider (Parasteatoda tepidariorum) at the Houston Zoo.

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ANI110-00200

An executioner frog (Dendropsophus carnifex) at Balsa de los Sapos. This species is a part of a breeding study center at the Universidad Católica del Ecuador in Quito.

This individual was from Mindo, Ecuador.

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ANI110-00199

An executioner frog (Dendropsophus carnifex) at Balsa de los Sapos. This species is a part of a breeding study center at the Universidad Católica del Ecuador in Quito.

This individual was from Mindo, Ecuador.

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ANI110-00198

An executioner frog (Dendropsophus carnifex) at Balsa de los Sapos. This species is a part of a breeding study center at the Universidad Católica del Ecuador in Quito.

This individual was from Mindo, Ecuador.

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ANI110-00197

An executioner frog (Dendropsophus carnifex) at Balsa de los Sapos. This species is a part of a breeding study center at the Universidad Católica del Ecuador in Quito.

This individual was from Mindo, Ecuador.

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ANI110-00203

An executioner frog (Dendropsophus carnifex) at Balsa de los Sapos. This species is a part of a breeding study center at the Universidad Católica del Ecuador in Quito.

This individual was from Mindo, Ecuador.

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ANI084-00305

A Chinese hamster (Cricetulus griseus) at Tierpark Berlin.

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ANI072-00223

A 33-day-old eastern gray squirrel (Sciurus carolinensis hypophaeus) at the Wildlife Rescue Center of Minnesota.

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ANI033-00222

A royal antelope (Neotragus pygmaeus) at the LA Zoo.

An baby eyelash frog or Solomon island leaf frog (Ceratobatrachus guentheri) at Omaha's Henry Doorly Zoo.

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ANI025-00199

An baby eyelash frog or Solomon island leaf frog (Ceratobatrachus guentheri) at Omaha’s Henry Doorly Zoo.

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PEO024-00233

A young girl holds a Blanchard’s cricket frog (Acris crepitans blanchardi) at a pond in Valparaiso, Nebraska.

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PEO024-00232

A woman holds a Blanchard’s cricket frog (Acris crepitans blanchardi) in Valparaiso, Nebraska.

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PEO024-00231

A woman holds a Blanchard’s cricket frog (Acris crepitans blanchardi) at a pond in Valparaiso, Nebraska.

A full grown Madagascan dwarf chameleon (Brookesia minima) in Madagascar. This species is endangered.

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ANI092-00075

A full grown Madagascan dwarf chameleon (Brookesia minima) in Madagascar. This species is endangered.

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ANI092-00076

A full grown Madagascan dwarf chameleon (Brookesia minima) in Madagascar. This species is endangered.

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ANI092-00077

A full grown Madagascan dwarf chameleon (Brookesia minima) in Madagascar. This species is endangered.

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A boy holds up a tiny carpenter fish in the village of Kyehoro on Lake Albert in Uganda. Though huge, the lake is severely over-fished. Nile perch are now too small and too few to sustain the human population, so locals have taken to using mosquito nets stitched together to get their food. With mesh that small, no fish can escape. “Any aquatic organism that falls in the net is killed,” says a local guide. Residents of the area get 80% of their food and fish from the lake, which means serious trouble when the fish run out.