Philadelphia Restores Indoor Mask Mandate Amid New Wave Of COVID-19 Cases
Philadelphia is restoring its indoor mask mandate as the number of COVID-19 cases rise across the region. The Philadelphia Department of Public Health announced the reinstatement of the mandate on Monday, giving residents and businesses a “one-week educational period” to prepare for the change. Advertisement COVID-19 rates are rising in Philadelphia, with an average of […]
Common Form of Liver Cancer on the Rise in Rural America
Latest Cancer News TUESDAY, Sept. 21, 2021 (HealthDay News) Liver cancer is on the rise in rural America, but on a downswing in cities, new research shows. Hepatocellular carcinoma (HCC) is the most common type of liver cancer and the fastest-growing cause of cancer deaths in the United States. It’s rising at an […]
Sustained fast rates of evolution explain how tetrapods evolved from fish
One of the biggest questions in evolution is when and how major groups of animals first evolved. The rise of tetrapods (all limbed vertebrates) from their fish relatives marks one of the most important evolutionary events in the history of life. This “fish-to-tetrapod” transition took place somewhere between the Middle and Late Devonian (~400-360 million […]