Honeybees live for half as long as they did 50 years ago, a new study has found. Scientists at the University of Maryland kept bees in a controlled laboratory environment from the pupae up to the end of their life, and found they lived just 17.7 days on average. For comparison, honeybees had an average lifespan of 34.4 days in the 1970s. 'Standardised protocols for rearing honey bees in the lab weren't really formalised until the 2000s, so you would think that lifespans would be longer or unchanged, because we're getting better at this,' said PhD student and lead author...