It would seem to be something you'd see only in a cartoon or at a Phish concert, but according to park rangers in New South Wales, Australia, dozens of giant, fluorescent pink slugs have been popping up on a mountaintop there. The eight-inch creatures have been spotted only on Mount Kaputar, a 5,000-foot peak in the Nandewar Range in northern New South Wales. Scientists believe the eye-catching organisms are survivors from an era when Australia was home to rainforests. A series of volcanoes, millions of years of erosion and other geological changes “have carved a dramatic landscape at Mount Kaputar”, the park service wrote on its Facebook page, and unique arid conditions spared the slugs from extinction. (Photo by Michael Murphy/AFP Photo/NSW Environment Office)

People celebrate Nowruz, considered as the harbinger of spring, awakening of nature and brotherhood, with traditional costumes and at Gobustan National Park in Baku, Azerbaijan on March 21, 2022. People from different regions of Azerbaijan attended celebration with colorful dresses and various music groups performed. (Photo by Resul Rehimov/Anadolu Agency via Getty Images)

This photo taken on September 1, 2023 shows a one-day-old female Sumatran elephant by her 41-year-old mother elephant named Lisa at the Elephant Flying Squad camp in the Tesso Nilo National Park in Pelalawan, Sumatra. (Photo by Wahyudi/AFP Photo)

An illumination is held at a commercial facility “NAMBA PARKS” in Osaka City, Osaka Prefecture on November 15, 2022. Approximately 650,000 LED (light-emitting diode) bulbs are decorated to imagine waterfalls and meadows at the event. (Photo by Naoya Azuma/Yomiuri/The Yomiuri Shimbun via AFP Photo)

People take part in the Festival of Colors at Asanbai Park in Bishkek, Kyrgyzstan, 27 May 2023. The festival brings together young people sprinkling each other with colored powder to pay homage to India's traditional Holi festival. (Photo by Igor Kovalenko/EPA/EFE)

Boy says hello to a swimming bear in Seattle, Washington on October 4, 2022. Fall weather brings out the Animals' playful side as Attendees celebrate World Animal Day with a visit to Woodlawn Park Zoo. (Photo by Shane Srogi/ZUMA Press Wire/Rex Features/Shutterstock)

A visitor views “Giant Pumpkin, no1” by British artist Anthea Hamilton during the Frieze Art Fair in Regents Park in London on October 12, 2022. The fair is open to the public 14–18 October. (Photo by Guy Bell/Alamy Live News)

People view an installation over a lake that forms part of the Enchanted Forest Winter Illuminations at Stockeld Park in Wetherby, North Yorkshire on Monday, November 14, 2022. Light effects, a captivating soundscape, and animated installations come together in the ancient woodland once a year over the Christmas period. (Photo by Danny Lawson/PA Images via Getty Images)