Researchers have described a new-to-science species of walking shark, which lives in the remote, shallow waters off southeastern Papua New Guinea. The newly named Dudgeon’s walking shark (Hemiscyllium dudgeonae) is a type of epaulette shark, a group of small sharks famous for their ability to use their fins to “walk” when stranded in tidal shallows. Walking sharks are nocturnal, feed on invertebrates and aren’t dangerous to humans. Christine Dudgeon of the University of the Sunshine Coast in Australia and her colleagues were surveying the waters in and around Papua New Guinea’s Milne bay after midnight when she captured a meter-long fish by hand. Dudgeon told Mongabay by email that she initially thought she’d caught a Michael’s or Milne Bay walking shark (Hemiscyllium michaeli), also known as a leopard epaulette shark, “which was the one that we were looking for.” Back on the boat and under light, Jess Blakeway, a PhD student at the university and the study’s lead author, noticed the shark’s color pattern was different from any of the walking sharks she had worked with before, according to a press release. Although all walking sharks in the genus Hemiscyllium are similar in size and shape, species can be uniquely identified by their markings, Dudgeon told Mongabay. Dudgeon added the Milne Bay walking shark has very distinctive leopard spots while the species she collected had white stripes and small brown spots all over it “and didn’t look like any of the other species at all.” Over the next two days,…This article was originally published on Mongabay

A large property containing a unique wetland system in Australia’s Murray-Darling Basin was transferred into long-term Indigenous ownership in 2026 for conservation. The 33,000-hectare (81,545-acre) property contains most of the Great Cumbung Swamp, located at the end of the Lachlan River in the state of New South Wales. The swamp has a mix of open water and reed beds, bordered by river red gum (Eucalyptus camaldulensis) woodlands, and is an important habitat for waterbirds, frogs, fish and reptiles. The Nari Nari Tribal Council (NNTC), an Indigenous conservation land management organization, purchased the property in January 2026 following joint fundraising efforts by the conservation NGO The Nature Conservancy (TNC) and NNTC. James Fitzsimons of TNC recently wrote about the sale of the property in Oryx. Fitzsimons told Mongabay by email that the Great Cumbung Swamp “acts a refuge when the rest of the landscape is dry,” He added that it supports threatened species such as the Australasian Bittern (Botaurus poiciloptilus), Murray cod (Maccullochella peelii) and the southern bell frog (Litoria raniformis). Each year, approximately 11,500 waterbirds visit the swamp. The wetland is not only of local, state and national significance, but has been evaluated to be listed as a Ramsar wetland of international significance, Fitzsimons said. The property had experienced decades of logging and cattle grazing. In 2019, TNC and the Tiverton Agricultural Impact Fund jointly purchased it to prevent future agricultural intensification and further degradation of the ecosystem. Fitzsimons said grazing pressures have reduced since the purchase. This, combined with…This article was originally published on Mongabay

Researchers have identified three new-to-science species of snake mantises, two from Australia and one from Papua New Guinea, and figured out their distribution and behavior with the help of citizen scientists. Matthew Connors, a Ph.D. candidate at James Cook University in Australia, led the effort to revisit the taxonomy of Kongobatha, a little-studied group of praying mantises known as snake mantises for the snake-like patterns on their wings. They’re also referred to as leaf-planking mantises, because they press their bodies against leaves to camouflage. The blending in helps because they are both predators of insects, including flies and mosquitoes, and prey themselves. “They have this special organ right on their chest that is a sensory thing, and it helps them flatten themselves down really nicely against a leaf, so that they’re really hard for a predator to see,” Connors said in a news release. Previously only two species of Kongobatha were known: one from Australia and another from Papua New Guinea. Now, there are three more, named K. serpens, K. spinosistyla and K. rufilinea. To describe these three species, Connors collected new specimens of the mantises and sourced others from Australian and international museums and private collections. He examined them under a microscope, focusing on male anatomical features called styli, which are a pair of small appendage-like structures located on the end of the abdomen, and may function in mating, although this remains a “mystery,” Connors told Mongabay by email. The styli of snake mantises have many spines on them,…This article was originally published on Mongabay