Newly Discovered Monkey Species Has Orange Lips And Croaks Like A Frog

The Likweli are only the fifth new primate species discovered in the last 75 years, and differ considerably from their closest cousins.

Deep in the jungles of the Congo basin, in an area wild and dense with trees and verdant undergrowth, crickets sing.

And cutting into their song, coming from high in the jungle canopy, are deep croaks, but they don’t come from frogs.

The source of the mysterious calls are a new species of monkey called the Likweli by the few locals who are aware of them. Likweli are rare, difficult to find and live between two rivers – the Lomami and the Lilo — about 1,200 kilometers from their closest relatives, the colobus angolensis. (Commonly known collectively as colobus monkeys, they are split into six subspecies.)

Likweli have short black fur like their cousins but differ in the color of their mouths and noses, which range from a beige cream to a tangerine-like hue, as well as the shape of their skulls and their deep, rhythmic, croak-like vocalizations.

They’re only the fifth new primates species discovered in the last 75 years, and the excitement at their discovery has been tempered with concern that they may already be endangered.

It took substantial effort to find, observe and take DNA samples from Likweli, scientists say, and there hasn’t been an opportunity for assessing their numbers yet. However, because Likweli live in a relatively small range and depend on the high canopy to thrive (they eat a diet of mostly leaves and live above most potential predators), they’re vulnerable.

Members of the team who found them published a study this week in the open-access journal Plos One.

The process of tracking, photographing, studying and testing the new species took almost 20 years, according to the study’s authors.

“The first evidence of the new species came in 2008 during exploration of the Lomami Basin by members of the Lukuru Foundation, in an area that later became Lomami National Park. Ashley Vosper and Bernard Ikembelo photographed an unidentified monkey in a high forest canopy on the east bank of the Lomami River in the Courbure Sector, named for six large meanders of the Lomami River,” they wrote. “Although the photograph revealed only part of the animal, the field team strongly suspected that this was not any of the monkey species they already knew from the region. Following the initial sighting, nothing more was reported until November 2018, when Jean Pierre Kapale led a surveillance patrol in the Courbure Sector and photographed a black monkey with pale markings around its mouth and a white perianal patch. These characters were unlike those of any known primate species in the area.”

They were able to find and photograph seven more monkeys before beginning efforts for observational study. Likweli live in small family groups of about six individuals on average, they found.

The discovery is a reminder that our beautiful planet is still capable of surprising us even at a time when human behavior and expansion has placed unprecedented pressure on animal species. It’s a reminder that our planet is irreplaceable, that life continues to find new expressions and niches to branch into, and we shouldn’t give up on it.

No matter what the Elon Musks of the world say, no matter how many renders they share depicting grand cities in domed Martian craters or clinging to the underside of Europa’s thick ice crust inside its subsurface oceans, there is only one place thst is absolutely perfect for us, that we evolved to live on and care for.

Even if the science fiction futures that Musk, Bezos, Thiel, Altman and company envision ever come to pass, even if science fiction technology like terraforming becomes reality, there is no backup. Earth, its fauna and flora are ours to protect, a responsibility we need to take seriously for the collective future of every kind of life that exists here.

Let’s hope the Likweli and all species that follow have a place to thrive.

UPDATED: Monkeys Go Missing From Dallas Zoo Weeks After Clouded Leopard Freed From Habitat

Authorities believe the person or people who stole the monkeys intend to sell them as pets or breeding animals.

UPDATE, 2/1/2023: A tip led police to an empty home in Lancaster, Texas, about 15 miles from the zoo. The missing tamarins were found inside a closet and were unharmed, per CNN. They were returned to the zoo and examined by veterinarians.

Police still want to speak to an unidentified man (see story below) who was seen on zoo grounds, but they haven’t said what the man was doing or how he may be connected to the thefts. The abduction of the tamarins follows two other incidents of breached enclosures at the zoo, and the theft of 12 squirrel monkeys from Zoosiana in Broussard, Louisiana, this weekend.


Original story, 1/31/2023:

Dallas police released a photo of a “person of interest” they’d like to speak to after a pair of emperor tamarin monkeys went missing from their enclosure in the Dallas Zoo, the latest of three incidents in which animal habitats at the zoo were breached by human hands.

The first incident happened on Jan. 13 when zookeepers noticed a three-year-old clouded leopard named Nova was missing from her enclosure. They found a breach in the mesh netting that serves as one of enclosure barriers, and said it was a clean, intentional cut with a blade, not from the animals.

After a frantic search — and multiple appeals to the public informing people the leopard was not dangerous and should not be shot — zookeepers found Nova hiding in a tree on the zoo grounds, not far from her enclosure. Nova’s sister, Luna, lives in the same enclosure and remained there.

That same day, staff at the zoo also found another breach, this time at the langur exhibit. Langurs are old-world, leaf-eating monkeys native to Asia. None of the monkeys were missing, but the discovery strengthened the suspicion that someone had tried to steal Nova and at least one monkey, but were not successful.

Now it appears that same person or a copycat has been successful in another habitat. On Jan. 30, zookeepers found a breach in a habitat that hold’s the zoo’s emperor tamarin monkeys. Two of the monkeys were missing.

Tamarins are tiny arboreal new world monkeys that have become popular pets due to “influencers” popularizing them on sites like Youtube and celebrities purchasing them.

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A tamarin mother with her babies. Primate babies are virtually attached to their mothers for the first years of their lives

There are an estimated 15,000 monkeys living as pets in the US, and some species fetch up to $7,500 as infants, when they’re violently “pulled” from their mothers when they’re just days old and sold. Most are temporary pets, lasting up to two years before docile, adorable infants become destructive, resentful juveniles and the “owners” decide to cut their losses. Buying monkeys as pets and subsequently abandoning them has become so common that sanctuary spots are at a premium, with a handful of sanctuaries taking thousands of monkeys annually.

Some people buy new babies every year or two, shipping the “old” ones off to sanctuaries — or simply dumping them in the woods where they don’t know how to fend for themselves — and repeating the process of infantalizing newly-purchased monkeys. Macaques, capuchins, marmosets and tamarins are the most popular monkeys kept as pets.

Despite the appeal to some people, humans cannot meet the social or environmental needs of monkeys, who naturally live in troops with complex social hierarchies and relationships.

“Monkeys are not surrogate children, and they’re not little people,” the Humane Society’s Debbie Leahy told the New York Post in a 2013 story.

“Pulling” monkeys from their mothers traumatizes infants and the mothers, and there is a wealth of data from primate maternal deprivation studies — going all the way back to the cruel experiments of psychologist Harry Harlow — documenting the psychological damage done to the animals when they’re removed from their mothers and troops.

“If you try to keep them as pets you’re creating a mentally disturbed animal in 99.9 percent of the cases,” Kevin Wright, director of conservation, science and sanctuary at Phoenix Zoo told National Geographic. “The animal will never be able to fit in any other home. Never learn how to get along with other monkeys. And, more often than not, will end up with a lot of behavioral traits that are self-destructive.”

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A rhesus monkey baby, already separated from its mother at just a few days old.

Tamarins, which are often called “pocket monkeys” by people who keep them as pets, can fetch up to $5,000 apiece, generally less than larger primates like capuchins or macaques. Demand for macaques has skyrocketed since the pandemic, as laboratories test various drugs on the old world monkeys, and prices for infants have risen as well.

Despite officials at Dallas Zoo installing additional cameras and increasingly patrols on the grounds at night, an intruder or intruders were able to evade detection and successfully remove the animals some time between Sunday night and Monday morning.

Police have released an image of a man who was seen strolling through the zoo and have asked for the public’s help identifying him so detectives can speak with him. Police did not say why they believe the man, who is pictured wearing a hooded jacket and eating Doritos, would have information on the missing animals or what his role might be.

close up photo of a tamarin monkey
An emperor tamarin. Credit: Nathan J Hilton/Pexels