A new species of stream toad, Ansonia karen, was discovered in the Tenasserim Hills of western Thailand. However, aside from a number of subtle physical differences between them, genetic analyses helped to establish them as a separate species, and distinct from other new world angel sharks. Can a landmark bill transform healthcare in India? "Myself and my team quickly scrambled and drove down to Wexford and we made it just in time as the tide was coming in," he said. If you wish to take a look at the preserved specimens of the new species, head to the Department of Ichthyology at the California Academy of Sciences. The youngest species might have evolved as recently as only two million years ago, demonstrating a remarkable evolutionary staying power, the papers co-author Mark Erdmann said, according to CNN. A new paper co-authored by Smithsonian Tropical Research Institute staff scientist, D. Ross Robertson, described and named it. The newly recognized sharks were named Kajas sixgill sawshark and Annas sixgill sawshark in honor of Weigmanns daughter and niece. (DAVID A. EBERT), Sleight-of-hand magic tricks can fool monkeys, but only if they have hands like ours, SpaceX Starship rocket test could happen next week FAA, NASAs Ingenuity Mars Helicopter breaks world records, again, Godzilla shark discovered in New Mexico gets formal name, India achieved it: ISRO succeeds in landing Reusable Launch Vehicle, Digging Deep: How mangroves are affected by climate change. The feathers are said to glisten in the sunlight, which is how the species got its name. Then in 2017 and 2019, a few more of Weigmanns colleagues mailed him two sawsharks that fishermen had captured as by-catch off the coast of Zanzibar. Purpose and Chance in the Making of an Academic Career (Or, at least, in my academic career). 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Guemesia ochoai Paelontologists in Argentina unearthed a partially complete skull belonging to a stubby-armed abelisaurid important. These marine havens of sixgill sawshark in honor of Weigmanns daughter and niece most sawsharks have five gill on!: D. Ross Robertson, Smithsonian Tropical Research Institute Tropical Research Institute staff scientist, D. Ross,... Many species move through these marine havens the Indo-Pacific region updated 0 of! Their discovery came as a surprise to scientists, who previously knew of only a single species of sixgill sawshark. Financial support for ScienceDaily comes from advertisements and referral programs, where indicated. How do genes allow butterflies to mimic Thanks for contacting us. Join PopSci+ to read sciences greatest stories. This article, originally published on Jan. 13, 2022, has been updated. After analyzing the DNA of 12,000 fin samples, the scientists concluded that around 90 shark species are traded but five dominate the business: blue sharks (Prionace glauca), followed by silky sharks, then scalloped hammerheads (Sphyrna lewini), smooth hammerheads (S. zygaena) and shortfin mako sharks (Isurus oxyrinchus). Most sawsharks have five gill slits on each side of their bodies, as is typical for sharks. At the time, she was studying sawfish in Madagascar. By Kate Baggaley | Updated Jan 11, The new species is part of the largest shark family Pentachidae and also part of the largest order of sharks Carcharhiniformes, he adds. "We had to rush to take as many measures and samples of the animal as possible before the tide took it out.". Wafic's Eagle Ray was identified in the Arabian Gulf in the Indian Ocean. 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Scientists discover 439 million-year-old 'shark' species Weird But True Bizarre 430-million-year-old shark skeleton stuns, perplexes scientists By Alex Mitchell Should you ever be on the lookout, typically, the longhead darter is olive-yellow in color with square markings on the back, is about 4.5-5 inches long, and has a narrow head, as per the DEC. A post shared by Jacinta Shackleton Ocean (@jacintashackleton). . The newly-discovered sharks calls attention to the fact that the vast majority of Indonesias elasmobranchs are harmless to humans and lead fascinating but little-known lives beneath the sea, Erdmann wrote, adding that there is a growing awareness of the important ecological role that sharks play in maintaining healthy fish stocks, as well as the incredible economic potential of shark and manta-focused marine tourism.. Connecting all these conservation areas with corridors that are also protected is fundamentally important because many species move through these marine havens. While not specifically targeted by commercial fisheries, they may face threats such as bycatch, or from pollution. Smalltooth sand tiger sharks, which pose no risk to people, are currently assessed as "vulnerable" by the International Union for the Conservation of Nature. Explained: How surgeons gave a pig heart and hope of life to a human, Explained: How scientists are using grime-eating bacteria to restore classical art, PIL in HC against unauthorised construction in Delhis Sainik Farms, litigant asked to implead owners, As farmers worry about feeding families, zero paddy procurement in two of Jharkhands drought-hit districts, Fuels from Russian oil gets backdoor entry into Europe via India, Bipasha Basu-Karan Singh Grover share daughter Devis first photo, fans call her the cutest baby ever. Since then, they have not once been seen reproducing, leaving officials worried that the species could go extinct but in December 2022, scientists came across both Galpagos Pink Iguana hatchlings and juvenile Galpagos Pink Iguanas. The new species of prehistoric predators known as acanthodians was discovered in the Guizhou province of southwest China and was named Fanjingshania after one of the countrys UNESCO world heritage sites. June 20, 2022 1:18pm Updated 0 seconds of 35 secondsVolume 0% 00:25 00:35 This video file cannot be played. Silky 1, for example, swam 7,000 km (4,350 mi) in seven months and visited marine protected areas in Cocos Island, Costa Rica, and Malpelo, Colombia, in addition to the Galpagos in Ecuador. Credit: D. Ross Robertson, Smithsonian Tropical Research Institute. Scientists recently discovered four new species of sharks that have an unusual characteristic: these animals use their muscular pelvic fins to walk along the ocean floor.

A Swiss tourist emailed shark biologist Nicholas Payne at Trinity College Dublin after he discovered it while walking at Kilmore Quay on Saturday. Lessons from the extreme weapons of giraffe weevil warriors, Between 2010 and 2011, two research expeditions sponsored by the Spanish government exploring the biodiversity of benthic organisms those living on the ocean floor on Central Americas Pacific and Caribbean coasts, came across a new shark species. The Squatina mapama n. "Even though it was dead, for us to be so close to it and measuring and looking at it - it is still awe inspiring for us to see those amazing animals - albeit it a little bit sad - that it was not swimming around out there.". Guemesia ochoai Paelontologists in Argentina unearthed a partially complete skull belonging to a stubby-armed abelisaurid. Many of these armless dinosaurs possessed even smaller forelimbs than the infamously short-handed Tyrannosaurus rex. Reference: Long, D.J., Ebert, D.A., Tavera, J., Acero P., A.

Academy curator of invertebrate zoology Terry Gosliner identified 14 new sea slugs in the Indo-Pacific region. Maximum recorded size for females of this species is about 15ft, (4.5m) putting this Irish specimen - which was a female - at the upper end of their size limits. The Squatina mapaman. January 21, 2019 Tracey Peake Galagadon (c) Velizar Simeonovski, Field Museum The world of the dinosaurs just got a bit more bizarre with a newly discovered species of freshwater shark whose tiny teeth resemble the alien ships from the popular 1980s video game Galaga. Cardeosa, D., Fields, A. T., Babcock, E. A., Shea, S. K., Feldheim, K. A., & Chapman, D. D. (2020). The distinctive snout and teeth help distinguish the smalltooth sand tiger shark from other species. However, the information about what places the animals visited and the distances and depths at which they swam provided important data to be able to better protect the species. Squatina are flat-bodied sharks resembling stingrays, and generally speaking, the different species are not easy to distinguish from each other with the naked eye. Smalltooth sand tiger sharks, which pose no risk to people, are currently assessed as "vulnerable" by the International Union for the Conservation of Nature. "Squatina mapama, new species from Panama: first report of an angel shark from the Central American Caribbean." The investigation also shows that although silky sharks swim at depths of more than 300 meters (about 1,000 feet), they spend most of their time in shallower waters of less than 100 m (330 ft) because they tend to feed in tuna schools. Between 2010 and 2011, two research expeditions sponsored by the Spanish government exploring the biodiversity of benthic organisms -- those living on the ocean floor -- on Central America's Pacific and Caribbean coasts, came across a new shark species. "Squatina mapama, new species from Panama: first report of an angel shark from the Central American Caribbean."