A mother orangutan and her baby enjoy some sort of fruit early one morning in the jungles of Borneo. Nikon D700 with Nikkor 70-200mm lens (at 200mm) ISO 800, f/4.5 at 1/320th of a second.

The red-knobbed hornbill is a big bird. Despite their size, however, they can be hard to spot as they are very secretive. I photographed this one in Tangkoko National Park on the island of Sulawesi in Indonesia. They are listed as a “vulnerable” species due to habitat destruction throughout their range. Nikon D300 with Nikkor 200-400mm lens (at 400mm) ISO 1600, f/4 at 1/1600th of a second.

This black-handed gibbon, also known as the agile gibbon, was living amongst the orangutans in Tanjung Puting National Park in Indonesian Borneo. Unfortunately, these apes are listed as endangered due to loss of their forest habitat and the pet trade. Nikon D300 with Nikkor 200-400mm lens (at 250mm) ISO 800, f/4 at 1/250th of a second.

It was the end of the day when this young orangutan was swinging through the forest in Tanjung Puting National Park in Indonesian Borneo. The backlighting provided a nice bit of rim light to the red hair. Nikon D300 with Nikkor 200-400mm lens (at 280mm) ISO 800, f/4 at 1/500th of a second.

Green crested lizards are a species of agamid lizard and are native to Southeast Asia. I came across this one on a hike in Sumatra, Indonesia. Nikon D700 with Nikkor 70-200mm lens (at 200mm) ISO 400, f/5 at 1/80th of a second.

The orangutan equivalent of lounging in a hammock — he seemed quite comfortable in that convoluted position. This is a mature male, as evidenced by the large cheek flaps. Shot in Tanjung Puting National Park in Indonesian Borneo. Nikon D700 with Nikkor 70-200mm lens (at 70mm) ISO 800, f/5.6 at 1/250th of a second.

There are so many bat species out in the world that they can be hard to identify. I think this is a species of leaf-nosed bat. Photographed in a cave in Tanjung Puting National Park in Indonesian Borneo. Nikon D300 with Nikkor 200-400mm lens (at 290mm) ISO

This black-crested macaque (also known as the Celebes crested macaque) seemed to be telling me what she thought of me taking her picture. Actually, these monkeys were one of my favorite primate encounters in the wild and they were quite accepting of my presence. Photographed in Tangkoko National Park in Sulawesi, Indonesia, where one of the only populations still remains. They are considered critically endangered and without drastic measures their future is very uncertain. Nikon D300 with Nikkor 70-200mm lens (at 135mm) ISO 800, f/2.8 at 1/160th of a second.

Also known as the long-tailed macaque, the crab-eating macaque is a fairly common monkey throughout much of southeast Asia. This one looked like he was heading out for some of those aforementioned crabs. Photographed in Sumatra, Indonesia. Nikon D300 with Nikkor 200-400mm lens (at 340mm) ISO 800, f/4 at 1/80th of a second.

A proboscis monkey showing us a profile of his namesake proboscis. These guys truly are one of the more interesting looking creatures I’ve had the pleasure of photographing. The locals called them Dutchmen monkeys in reference to their potbellies, and swollen red noses which reminded them of the sunburnt Dutch colonialists. Nikon D300 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/4 at 1/60th of a second.