Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2011.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Samburu National Reserve, Kenya, 2007.
       
     
Samburu National Reserve, Kenya, 2007.
       
     
Tsavo East National Park, Kenya, 2011.
       
     
Loango National Park, Gabon, 2003.
       
     
Central African Republic, 2005.
       
     
Samburu National Reserve, Kenya, 2007.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Zakouma National Park, Chad, 2010.
       
     
Jane and Jou Jou, Brazzaville Zoo, Congo, 1990.
       
     
Tchimpounga Sanctuary, Congo, 1995.
       
     
Loango National Park, Gabon, 2003
       
     
Rwanda, 1980.
       
     
Bandhavgarh National Park, India, 1996
       
     
Bandhavgarh National Park, India, 1996
       
     
Humboldt County, California, 2008
       
     
Humboldt County, California, 2008
       
     
Mother of the Universe, Prairie Creek State Park, 2009.
       
     
Sierra Nevada, California, 2011.
       
     
Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

After appearing cautious amongst the Vumbi pride, resident male Hildur inexplicably began to run, and continued to run for five miles.  He was running to his other pride where we found him consorting with an estrus female the next day.  
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

Hildur, a resident coalition male, rests with a full belly from a zebra kill appropriated from the Vumbi pride.  At nightfall, he relinquished the carcass, allowing the pride to eat. 
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

For our two-year lion project, we centered our work around the females of the Vumbi (“dust” in Swahili) pride, raising cubs in the difficult feast and famine of the Serengeti plains.  We also focused on this black-maned male, one of two resident coalition males.  The researchers called him C-Boy.  Image made with invisible infrared light. 
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

During the rains this unnamed kopje (rock outcropping) has a waterhole that brings prey for the Vumbi pride. On this afternoon they rested closely together after all five females attacked Hildur, the second male in the resident coalition. Why? Maybe simply because there was not enough food to share.  
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

The Vumbi pride prepares for the evening hunt. Serengeti plains lions, because they have no cover, hunt by the darkness of night. They’re very tuned in to both when the sun rises and sets and when the moon rises and sets.
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Serengeti National Park, Tanzania, 2011.
       
     
Serengeti National Park, Tanzania, 2011.

We habituated the Vumbi pride to a remote-controlled toy camera car and were able to make very intimate ground-level images. This gave a dignified insight into lion social behavior. The fragile car would morph into a rugged robot tank as the assignment continued. 
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

Resident coalition male C-Boy guarded this zebra killed by the Vumbi pride for a whole day.  He only began to eat at dusk.  Later that night he was seen dragging the carcass toward a defensible rock outcropping with thirteen hungry lions and twenty hyena trailing him.
Image made with robot tank.
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Samburu National Reserve, Kenya, 2007.
       
     
Samburu National Reserve, Kenya, 2007.

Victoria of the royals, the most powerful family in Samburu National Reserve.
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Samburu National Reserve, Kenya, 2007.
       
     
Samburu National Reserve, Kenya, 2007.

Surrounded and protected by the adult females, younger elephants of the Virtues family play and mock-fight.
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Tsavo East National Park, Kenya, 2011.
       
     
Tsavo East National Park, Kenya, 2011.

At Voi Rehabilitation Center, orphans bathe in red mud, a playful midday ritual that provides sunscreen and insect control for the vulnerable youngsters.
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Loango National Park, Gabon, 2003.
       
     
Loango National Park, Gabon, 2003.

Some of my favorite images were taken by the elephants themselves, as they broke the invisible beams of carefully placed camera traps.
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Central African Republic, 2005.
       
     
Central African Republic, 2005.

The blurred trunk of a running forest elephant (Loxodonta africana) in the Dzanga clearing. 
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Samburu National Reserve, Kenya, 2007.
       
     
Samburu National Reserve, Kenya, 2007.

A young male of the Royals family travels alone.
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Serengeti National Park, Tanzania, 2012.
       
     
Serengeti National Park, Tanzania, 2012.

Savanna elephants moving across the plains toward the Gol kopjes. 
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Zakouma National Park, Chad, 2010.
       
     
Zakouma National Park, Chad, 2010.

One night when a herd of eight hundred elephants left the park to look for fresh food, twenty were gunned down in an ambush.
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Jane and Jou Jou, Brazzaville Zoo, Congo, 1990.
       
     
Jane and Jou Jou, Brazzaville Zoo, Congo, 1990.
Tchimpounga Sanctuary, Congo, 1995.
       
     
Tchimpounga Sanctuary, Congo, 1995.

Eager for a turn on the big blue swing, playmates frolic around caretaker Ludovic Rabasa, who doubles as a surrogate parent to the 50 orphans at Tchimpounga. Infant chimps, like humans, crave affection and play.
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Loango National Park, Gabon, 2003
       
     
Loango National Park, Gabon, 2003

Exploring Louri Creek, my teenaged son Eli spotted a recently hatched nest of Nile crocodiles. Carefully over the next days, we photographed without ever attracting the mother’s attention.
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Rwanda, 1980.
       
     
Rwanda, 1980.

A silverback known as Mrithi moves a bit - and blurs his portrait into art. Adult males can reach nearly six feet in height and 400 pounds in weight, with an arm span of eight feet. Adult females may weight 200 pounds. 
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Bandhavgarh National Park, India, 1996
       
     
Bandhavgarh National Park, India, 1996

Though at rest after a long night’s hunting, the tigress Sita remains alert and ready to fend off any intruder that comes too close to the hidden cliff-side cave in which she has placed her small cubs. Sita successfully raised seven litters of cubs—more than any other known tigress.
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Bandhavgarh National Park, India, 1996
       
     
Bandhavgarh National Park, India, 1996

Bacchi, a young tigress, recently pushed out by her mother, seeks relief from the sweltering 120-degree-Fahrenheit heat in a pool, despite its fetid brew of rotting leaves and monkey urine. This image was captured by an unmanned camera triggered by an infrared beam. These “camera traps” were set up to take pictures of tigers from close range at waterholes that I knew they would visit in the dry season. 
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Humboldt County, California, 2008
       
     
Humboldt County, California, 2008

Roosevelt elk cows scatter across a meadow in Prairie Creek Redwoods State Park as two bulls vie for dominance of the herd. They are named Roosevelt elk in honor of the conservation work of President Theodore Roosevelt.
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Humboldt County, California, 2008
       
     
Humboldt County, California, 2008

The northern spotted owl is an endangered species that inhabits the redwood trees. The owl, whose life might span ten years, is protecting these 1,500-year-old trees.
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Mother of the Universe, Prairie Creek State Park, 2009.
       
     
Mother of the Universe, Prairie Creek State Park, 2009.

More than a year of worry, questions and failed attempts led to three weeks of predawn attempts with a team of 8 to capture, in one perfect hour, the 84 images that Ken Geiger would spend 120 hours stitching together to create this composite.
With all that what is important is not the effort or the technique but whether the image makes us all care about this 300-foot-tall, 1,500-year-old giant that could have easily fell if the wrong chainsaw had approached her.
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Sierra Nevada, California, 2011.
       
     
Sierra Nevada, California, 2011.

Cloaked in the snows of California's Sierra Nevada, the 3,200-year-old giant sequoia called the President rises 247 feet. Two other sequoias have wider trunks, but none has a larger crown, say the scientists who climbed it. The figure at top seems taller than the other climbers because he's standing forward on one of the great limbs. 
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