Insect researchers are buzzing in Florida this week over the rediscovery of the blue bee, a rare little creature thought to have gone extinct shortly after it was discovered. Researchers in Florida say the blue calamintha bee (Osmia calaminthae) has been spotted for the first time since 2016, stoking hopes that it might be possible to save the insect from extinction. Blue calamintha bees nest alone and feed on Ashe’s Calamint, a threatened plant found only in Florida. The bees were first recorded in 2011 and dropped out of sight a few years later, despite calls to protect their threatened...