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Meet the 19-metre octopus that prowled the ancient seas

    From :- BBC World News By :-  Helen Briggs   Science correspondent Edited by :- Amal Udawatta    Image: Yohei Utsuki, Department of Earth and Planetary Sciences, Hokkaido University A sketch of what the giant octopus might have looked like Giant octopuses may have ruled the ancient oceans 100 million years ago, when dinosaurs roamed, according to new research. Some of the earliest octopuses are believed to have been powerful predators equipped with strong arms for grabbing prey and beak-like jaws for munching on the shells and bones of other animals. A new study of some remarkably well preserved jaws suggest they reached up to 19 metres, potentially making them the largest invertebrates ever known to scientists. For decades, palaeontologists believed that the largest ocean predators were vertebrates with backbones such as fish and reptiles while invertebrates like octopuses and squid played supporting roles. Getty Images A Giant Pacific Octopus mee...
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Aspirin can reduce the risk of cancer - and we're starting to understand why

Getty Images From :- BBC health news By :-  Miriam Frankel Editted by :- Amal Udawatta The 4,000-year-old drug, most commonly used to treat pain, prevents certain tumours from forming and spreading across the body – findings that are already changing health policies. Nick James, a British furniture maker in his mid-40s, first became concerned about his health after his mother died from cancer and his brother, along with several other family members, later developed bowel cancer. He opted to undergo genetic testing, and was found to be carrying a faulty gene which causes Lynch Syndrome, a condition that significantly increases the risk of developing that type of cancer. Help came from an unexpected place, however, when James became the first person to sign up for a clinical trial that set out to test whether a daily dose of aspirin – the over-the-counter painkiller – could protect against developing cancer. Depending on the type of gene mutation, 10-80% of people with Lynch syndrome...