For years and years, humans considered themselves the one and only makers of tools. Homo sapien literally means “wise man” because we were so intelligent that it was us humans, and us humans alone, who could even have the brain capacity to create a tool. It was considered the key feature of the genus Homo.

Well, that was until people actually decided to carefully look at other animal’s social behavior. It was not until the mid to late 1900’s that people realized “oops us humans are not the only ones to use tools.” Primatologists discovered chimpanzees creating tools for fishing termites out of their mounds, and stones for crushing nuts from their hard shell. Other researchers discovered that gorillas make beds from foliage, as well as sponges out of chewed up leaves.

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Nine monkeys escaped from an Oregon Health & Science University animal testing lab after a cage was left unlocked. Four were shortly re-captured and four others have been spotted on campus — but one has entirely eluded authorities.

“One of our cage cleaners accidentally left a lock off a cage,” said Jim Newman, a university spokesman. “The cage was closed; however, the animals were able to slide the door open and get out.”

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In the ongoing worldwide revolt of non-human captive primates, a circus monkey in central Florida made an escape into the woods after his captor forgot to attach a leash.

Today, workers at the Liebling Family Circus are attempting to lure Reggie the spider monkey out of the forest by waiting at the edge of the forest with his 20-year mate, Priscilla. But PETA, who had a representative at the circus when the monkey escaped, says the circus mistreats its animals and perhaps he’d be better off trying to survive in the wild.

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Following the news of a 31-year-old chimp who evidently likes to plot out attacks on his Swedish zoo visitors, a monkey in Thailand became tired of his owner beating him and forcing him up trees to collect coconuts — so he threw one straight at the owner’s head.

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Several days ago, I read a story about how Peru’s butterfly exports had increased 43% from January-April of this year. These are the butterflies that are pinned into glass frames for sale as gifts and souvenirs. I wondered if all of these butterflies included those that are exported illegally and those that are endangered. Questions of this kind were on my mind as just several days earlier my family had passed by a street vendor who sold animals illegally.

One of the animals was a baby monkey, caged and frightened. We live in the highlands region of Peru, so the monkey was far from its former home in the rainforest. My wife, who in the past worked as a biologist throughout Peru, told me that she thought this was an endangered monkey. As we walked home, I wished I had brought my camera. This I thought, is a story that needs to be pursued.

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Now, for the first time, scientists have observed long-tailed macaques fishing with their bare hands.

Nature Conservancy scientist Erik Meijaard and other researchers are the first to scientifically document this rare conduct. In a recent article published in the International Journal of Primatology, Meijaard and his coauthors say that, while conducting field studies in Indonesia, they have repeatedly observed long-tailed macaques catching fish from fast-flowing rivers.

“This is interesting behavior and some of the first observations of primates catching fish,” says Meijaard, the Conservancy’s senior ecologist in Indonesia.

A Very Hungry Monkey?

In the first sighting back in 1998, researchers describe seeing five female macaques sitting alongside the Ketambe River in the Indonesian province of North Sumatra.

The macaques’ eyes scanned the water. After about three minutes, one of the macaques reached into the river. With her bare hands, she pulled out a fish and quickly ate it. Other macaques watched her — and one even tried unsuccessfully to catch a fish herself.

“Clearly it may raise the question of whether there is some sort of learning going on,” says Meijaard. “If perhaps a couple of generations back, one primate caught a fish and it was subsequently copied.”

Researchers documented a similar sighting in 2006 in a separate macaque population in the Lesan Conservation Area, a Nature Conservancy program site in East Kalimantan, Indonesia. There, on two separate occasions, a macaque was observed swiftly grasping a fish out of the shallows before retreating into the forest with the fish still in its mouth.

While the fishing macaque sighting in Lesan coincided with a time of low fruit availability, Meijaard is hesitant to blame the fishing behavior on resource scarcity or draw conclusions about its meaning.

“It might be nothing more than a hungry monkey who is smart enough to extract nutrients from its environment,” he says.

Protecting Indonesia’s Forests

Meijaard is also the Kalimantan coordinator for the USAID-funded Orangutan Conservation Services Program.

But he says that forests — not macaques or orangutans — are the Conservancy’s real focus.

The Conservancy is fighting an ongoing battle to protect the forests around the Lesan Conservation Area. These forests, which harbor a substantial orangutan population, are slated to be destroyed for agriculture and plantations.

The Conservancy is working around the clock to convince local communities and governments to instead consider their long-term economic needs and put the forests into permanent, sustainable management.

“Macaques and orangutans are neat symbols, but they’re not going to convince people here,” Meijaard says. “What we need is data that shows the microeconomic implications of forest conversion.”

“Depending on the decisions made now, the forest could be around forever, or it could be gone forever by next year.”