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CNN —The oldest examples of swimming jellyfish, which lived in Earth’s oceans 505 million years ago, have been discovered high within the Canadian Rockies. The multitude of Burgessomedusa phasmiformis fossils at the site showed that large, swimming bell-shaped jellyfish evolved more than 500 million years ago. The Burgess Shale was first discovered in 1909 by Charles D. Walcott, secretary of the Smithsonian Institution in Washington, DC. The more that researchers study fossils from the Burgess Shale, the more complex the ancient food chain becomes. “This adds yet another remarkable lineage of animals that the Burgess Shale has preserved chronicling the evolution of life on Earth.”
Persons: Burgess, Jean, Bernard Caron, Medusozoans, , Joe Moysiuk, Desmond Collins, Raymond Quarry, Charles D, Walcott, Royal Ontario Museum’s Richard Ivey Organizations: CNN, Canadian Rockies, Royal Ontario Museum, Royal Society, University of Toronto, Royal Ontario, Smithsonian Institution Locations: Burgess, Canada's, British Columbia, Washington ,
Jellyfish have been floating through Earth’s oceans seemingly forever. They rarely show up in the fossil record because jellyfish are 95 percent water and are prone to rapid decay. But Dr. Caron and other scientists recently described a cache of jellyfish fossils from the Cambrian period that found an improbable pathway to preservation. In a paper published on Wednesday in the journal Proceedings of the Royal Society B, the scientists posit that these 505-million-year-old animals are among the oldest swimming jellyfish known to science. “These new fossils represent the most compelling evidence of Cambrian jellyfish to date,” said David Gold, a paleobiologist at the University of California, Davis, who was not involved in the new study.
Persons: , Jean, Bernard Caron, Caron, David Gold, Davis Organizations: Royal Ontario Museum, Royal Society B, University of California Locations: Toronto
CNN —James Cameron isn’t just one of Hollywood’s most successful directors ever, he’s also a lover of deep sea exploration. Here’s what the director has said in the past about the deep sea exploration. Cameron took cameras to document the entire trek in the western Pacific. The sub’s just going like a bat out of hell.”Quickly, he said, he went past Titanic depth. I get to bear witness to a miracle that’s down there all the time,” Cameron told 60 Minutes Australia in 2018 of his deep sea explorations.
Persons: James Cameron isn’t, he’s, , Cameron, ’ Cameron, Playboy, , , ” Cameron, Jacques Cousteau’s, Joe MacInnis, MacInnis, Mariana Trench, Suzy Amis Cameron, Lizzy Calvert, you’ve Organizations: CNN, National Geographic, Royal Ontario Museum, Geographic, Australia Locations: Ontario, Canada, Toronto, Pacific,
Scientists also believe ankylosaurs could have used their weapon-like tails to assert social dominance, establish their territory or even while battling for mates. Royal Ontario MuseumThese tails measured up to 10 feet (3 meters) long, with rows of sharp spikes along the sides. The tail’s tip was fortified with bony structures, creating a club that could swing with the force of a sledgehammer. Instead, the pattern looks like the result of receiving a forceful slam from another ankylosaur’s tail club. The Zuul fossil is currently kept in the Royal Ontario Museum’s vertebrate fossil collection.
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