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Mulberry may reshape gut bacteria and influence metabolism
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After failed execution, health workers say Tennessee's method flouts medical ethics
After a botched lethal injection in May, dozens of Tennessee medical professionals told the governor that healthcare professionals shouldn't help with executions, ever. No matter the method.

Watch: Meet 'Backpack', the chunky bear who won Fat Bear Week
The brown bear, described by one supporter as having both the "chonk and the badonk", will shortly enter hibernation, which can last up to six months.
Cannabis users were twice as likely to commit violence, review finds
A review of more than 265,000 people found that cannabis use was associated with higher rates of both committing violence and becoming a victim of it. The researchers say the link is significant but does not prove cannabis itself is the cause.
A record-breaking X-ray flash may reveal the birth of a magnetar
Astronomers have found strong evidence that some mysterious, minutes-long X-ray flashes are produced when two neutron stars collide and create a magnetar. One record-setting event glowed in X-rays for nearly 10 minutes, potentially opening a new way to find these extreme cosmic mergers.

Only 28% of nurdles 'recovered', researchers say
Scientists predict that nurdles will continue to wash up on North East beaches.
NASA's Perseverance Mars rover finds groundwater, lakes, and hot fluids in one place
NASA’s Perseverance rover has uncovered a surprisingly complicated history of water in Jezero Crater. Scientists expected the crater’s Margin Unit to contain lake sediments, but instead found ancient igneous rocks that were altered by water on at least three separate occasions.