Dirty Toothbrush, Smart Crows, Rare Supermassive Black Hole

Today, you’ll learn about how a tool we use to keep clean might need a little cleaning of its own, the wild intelligence of wild crows, and the case of the missing black holes.  Dirty Toothbrush   “An updated systematic review on toothbrush contamination: An overlooked oral health concern among general population.” by Shahrukh Ali Khan, et al. 2023.  “Can Your Toothbrush Make You Sick?” n.a. 2019.  “Toothbrush Terror! Can Your Toothbrush Make You Sick?” by Stephanie Watson. N.d.   Smart Crows   “For the first time, research reveals crows use statistical logic.” by Kenna Hughes-Castleberry. 2023.  “Like humans, these big-brained birds may owe their smarts to long childhoods.” by Amanda Heidt. 2020.  “Crows flexibly apply statistical inferences based on previous experience.” by Melissa Johnston, et al. 2023.  “Crow Vocalizations Part II: Q&A.” Corvid Research. 2019.  “Flying in for the Crow Funeral.” by Anne Marshall-Chalmers. 2020.  “Canuck & I.” YouTube Video. 2021.   Rare Supermassive Black Hole  “Active supermassive black holes may be rarer than previously thought.” by Darren Incorvaia. 2023.  “James Webb Space Telescope reveals active supermassive black holes were surprisingly rare in early universe.” by Robert Lea. 2023.  “Supermassive black holes: Theory, characteristics and formation.” by Andrew May. 2022.  “James Webb Space Telescope Reveals Fewer Supermassive Black Holes Than Presumed.” The University of Kansas. 2023.   Hosted on Acast. See acast.com/privacy for more information.

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