
Staggering Results Show HIV-Transmission Reduced 100% with Twice-Yearly Lenacapavir Injection

3 Teens Win Global Earth Prize for Inventing Tamarind Powder That Easily Removes Microplastics

Scientist Discovers New Species of Wildflower That Only Grows in New Jersey


Mozambique ‘sky island’ expeditions found 4 new species of chameleon – already at risk from forest loss
Tropical rainforests are known for their unique biodiversity, with species found nowhere else on Earth. But nearly 30% of tropical rainforest has been destroyed or has become seriously degraded since 1990. Many of these forests have not been fully explored for their biodiversity. This means that the world may be losing species before they are even discovered by modern science.
In Africa, forest loss is rapid; about 25% of the continent’s tropical forest has been lost since 1990, against a backdrop of incomplete knowledge of where the biodiversity is located.
Greatly lagging in this respect are the “sky islands” of northern Mozambique: isolated granite mountains that rise sharply out of the savanna plains. They were left standing when softer rock around them gradually eroded, and can be as high as 3,000 metres elevation. Because they rise so steeply, the sky islands attract clouds and rainfall, feeding moisture to the tropical rainforests on their slopes within an otherwise arid terrain. Isolation has allowed unique species to evolve on each mountain, such as geckos, rodents, fishes, crabs, frogs, butterflies and bats.
From 2014 to 2018, a research team led by fellow herpetologist Werner Conradie and myself explored these sky island forests to catalogue the species of reptiles found there. We found that each sky island forest is home to a previously unknown species of chameleon within the genus Nadzikambia (forest-dwelling “sylvan chameleons”).
Unfortunately, these chameleons are already at risk of extinction due to the heavy slash-and-burn clearing of the forests, the only place they can call home.
We’ve described these new species, choosing four names to highlight pioneering women scientists whose work inspired us to strive towards new discoveries, but also to call attention to the losses of their forest habitat.
Hunting for chameleons
Over the course of several years, we explored four of Mozambique’s sky islands – Mount Namuli, Mount Inago, Mount Chiperone and Mount Ribáuè – with the aim of cataloguing all reptiles but also in the hopes of finding new species of chameleons. This was because a species of sylvan chameleon had been discovered on one of these mountains during the 1960s, but they were not known from any other mountains.
However, chameleons can be very difficult to find, given their ability to remain camouflaged against the background coupled with their slow movements. They are more easily spotted at night while they are sleeping, as they stand out against the vegetation when illuminated by a strong beam of light. Sylvan chameleons are even more difficult to spot than others, as they usually perch high in the thick forest canopy – tens of metres up.
The search meant dealing with some tough conditions: a long, arduous trek up the hot, arid slopes to reach the forest high up the mountain. Establishing a remote base camp was essential. All food, clothes and gear had to be packed into the camp, and we didn’t know how long it would take to find any animals.
At each of these mountains, we surveyed every night for chameleons – no trails to follow, no GPS signal to guide us, no cellphone signal to call for help.
Sometimes we were lucky and found chameleons on the first or second night. At other mountains we were not so lucky, with fruitless searches making it necessary to return another year.
Eventually these mountains revealed their secrets and we discovered four new species of sylvan chameleon, one on each of the four mountains.
We don’t know how big their populations are, but we assume they are in decline. Most of their habitat has been destroyed by forest clearing to make way for agriculture, with increasingly rapid losses in the last decade. We estimate that in some cases, 80%-90% of their habitat has been destroyed.
When parts of an ecosystem are lost, the whole becomes unstable and is eventually lost.
Choosing names for the new species
To highlight their predicament, we have described and named these chameleons and have forecast that three of these species are at high risk of extinction.
In particular, we highlight Nadzikambia goodallae from Mount Ribáuè. This species has been named in honour of the distinguished scientist Jane Goodall, whose own study species, the chimpanzee, is under similar pressures from loss of its rainforest habitat.
We also honour the renowned discoverer of the structure of DNA, Rosalind Franklin, by naming the species from Mount Namuli as Nadzikambia franklinae. The use of DNA data from these chameleons was essential to confirm them as new species.
We have dubbed the species from Mount Inago as Nadzikambia evanescens, meaning “vanishing” in Latin, acknowledging the state of the forest destruction.
The final species, Nadzikambia nubila, is named for the cloudy aspect of Mount Chiperone. This species has a lower risk of extinction given that the local community view the forest as sacred, and say it should be protected.
Female sylvan chameleon (Nadzikambia nubila) from Mount Chiperone. Krystal Tolley, CC BY
This latter case is significant, as it demonstrates that wholesale destruction of these forests is not an essential trade-off for local people to thrive. If encouraged and supported, community support and buy-in can be a solution to protect biodiversity in these sensitive ecosystems.![]()
Krystal Tolley, Principal Scientist, University of Johannesburg
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Johns Hopkins Team Develops Therapeutic, Nasally-Delivered DNA Vaccine for Tuberculosis
Artist’s illustration of tuberculosis bacteria (TB) – credit, US CDCSpectacular New Species Found in Cambodia’s Limestone Caves–Asia's 'Little Laboratories'

Landscapes along the Li River amid the South China Karst – credit, Sam Beasley via Unsplash

24 New Species Including a New Family of Amphipods Identified in Deep Sea Survey
Collage of the 24 new Amphipod species identified in Clarion-Clipperton Zone – credit, National Oceanographic Center, Southampton
Location of the Clarion Clipperton Zone – credit USGSHe Made a Battery Pack Using Disposable Vapes to Power His Electric Car (WATCH)
Chris Doel powers electric car with disposable vape batteries – SWNS
Credit: Pablo Merchán Montes for Unsplash+Rare Species of Pink 'Fairy Club' Fungus Discovered in UK for First Time

Scientists Document Over 16,000 Footprints in the World’s Most Extensive Dinosaur Tracksite


Iron-Air Batteries Powered by Rust Could Revolutionize Energy Storage By Using Only Iron, Water, and Air
Iron-air batteries for stable power – Credit: Form EnergyIndian researchers develop diagnostic device to detect early-stage bone cancer
World’s Smallest Snake Rediscovered in Barbados After 20 Years

Elusive Sailback Shark Rediscovered After 50 Years
Sagumai et al. / Journal of Fish Biology, 2025Giant stick insect species discovered in Australia
A large and previously unknown stick insect has been discovered in the misty forests of Far North Queensland — and it might just be Australia's heaviest insect.
The giant stick insect has been named Acrophylla alta, a nod to its high-altitude habitat in the Atherton Tablelands, ABC reported.
James Cook University Adjunct Professor Angus Emmott and south-east Queensland scientist Ross Coupland searched for the stick insect after they received a photograph of what they believed was an unknown species.
Despite its elusive nature, they managed to find a large female at an elevation above 900 metres between Millaa Millaa and Mount Hypipamee in the Wet Tropics World Heritage Area.
"We looked at its eggs after it laid some eggs and we were absolutely certain it was a new species," Mr Emmott said.
Two females have since been found, including one that a friend of Mr Emmott's found in a garden.
"They let it go afterwards, but they weighed it and photographed the weighing of it, and it was 44 grams," he said.
"I'm not sure exactly how to go about [verifying] that. I know the large burrowing cockroach was considered the heaviest insect, but it only gets into the mid-30 grams."Their findings have been published in the journal Zootaxa., Source: Article
Scientists Define a Color Never Before Seen by Human Eyes, Called 'Olo'–a Blue-Green of Intense Saturation
Photo by Hamish on UnsplashDiscovery of Genetically-Varied Worms in Chernobyl Could Help Human Cancer Research
Worms collected in the Chornobyl Exclusion Zone – SWNS / New York University
The ruins of Reactor 4, Chernobyl Exclusion Zone. credit Matt Shalvatis – CC BY-4.0. SA