Nicole Kidman arrives for the world premiere of "Holland" at the Paramount Theatre during the South by Southwest Conference and Festival on Sunday, March 9, 2025, in Austin, Texas. (Photo by Jack Plunkett/Invision/AP Photo)

After some days with temperatures below freezing point, I was out skating at some lakes at the outskirts of Oslo in Norway. After a while I noticed something on the ice. To my astonishment it was a dead frozen frog.

Stemonitis axifera is a species of slime mold. It fruits in clusters on dead wood, and has distinctive tall reddish-brown sporangia, supported on slender stalks. The species was first described as Trichia axifera by Jean Baptiste François Pierre Bulliard in 1791. Thomas Huston MacBride transferred it to the genus Stemonitis in 1889. Stemonitis fasciculata and Stemonitis smithii are synonyms.

Revellers gather for the start of the Annual SantaCon Bar Crawl at Father Duffy Square, a section of Times Square, on December 14, 2019, in New York City. SantCon is an event where people make donations to charitable causes and dress up as a Christmas character and visit bars around the city. (Photo by Steven Ferdman/Getty Images)

Flying pigeons pass over Nepalese street vendors near the earthquake damaged UNESCO World Heritage Site, Durbar Square in Kathmandu on May 20, 2015. Nearly 8,500 people have now been confirmed dead in the disaster, which destroyed more than half a million homes and left huge numbers of people without shelter with just weeks to go until the monsoon rains. (Photo by Ishara S. Kodikara/AFP Photo)

This photo taken on July 19, 2020 shows a person taking photos while water is released from the Three Gorges Dam, a gigantic hydropower project on the Yangtze river, to relieve flood pressure in Yichang, central China's Hubei province. Rising waters across central and eastern China have left over 140 people dead or missing, and floods have affected almost 24 million since the start of July, according to the ministry of emergency management. (Photo by AFP Photo/China Stringer Network)

Friends and relatives of Palestinian Fulla al-Masalma, 16, mourn during her funeral in the village of Beit Awa, west of Hebron, in the occupied West Bank on November 15, 2022. Israeli forces shot dead the Palestinian teenager in the occupied West Bank the previous day, the Palestinian health ministry said, while the army confirmed raids and a shooting incident in the area. The Israeli Defence Forces reported that its soldiers had fired at a car that was speeding toward them and that “hits were identified”, but without confirming the fatality. (Photo by Hazem Bader/AFP Photo)

People clean up debris at a traditional market damaged by flood after torrential rain on August 09, 2022 in Seoul, South Korea. The heaviest rainfall in 80 years has pounded Seoul and surrounding regions, leaving seven people dead and six others missing, as well as flooding homes, vehicles, buildings and subway stations, government officials said. (Photo by Chung Sung-Jun/Getty Images)