A Quick Lesson on the Birds and the (Mason) Bees - The Center for Pollinator Research
pollinators.psu.edu
By Dr. Natalie Boyle Did you know that a female mason bee can control the sex of each individual egg that she lays as she builds her nest? Mason bees pre-deter
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The original was posted on /r/todayilearned by /u/Lady_Hazy on 2025-06-27 10:21:50+00:00.

Original Title: TIL that male bees and wasps contain half the amount of genetic information that female bees/wasps have, as males hatch from unfertilised eggs. Egg laying females can choose whether or not to fertilise an egg from her ‘spermatheca’ to create male or female offspring.