Scientists found bees nest built entirely from plastic waste #3662 by Adam Bee 18 Jun 2019, 22:18 https://www.smithsonianmag.com/smart-news/found-bees-nest-built-entirely-plastic-waste-180972380/ Running "Foundationless All Mediums with No Queen Excluder". Each box is national spec, but 190mm deep. Username Adam Bee Rank NewBee Posts 68 Joined 01 Jun 2019, 11:43