Wednesday 31 January 2018

Nobody Knows Why These Bees Built a Spiral Nest


By Brandon Specktor, Senior Writer | January 22, 2018 03:03pm ET

The Australian stingless bee Tetragonula carbonaria is not your average pollinator. For starters, out of about 20,000 known bee species in the world, T. carbonaria is one of only 500 without stingers.

That's not to say this bee is defenseless. Invasive beetles that have tried to infiltrate T. carbonaria nests have found themselves suddenly covered in a brew of wax, mud and plant resin — effectively mummified alive by bees. T. carbonaria colonies have also been observed waging days-long territory wars against their stingless neighbors, resulting in hundreds of bee-on-bee casualties and queens unceremoniously dethroned.

This is all to say, if you had a home like T. carbonaria's, you'd probably fight for it, too. As seen in a popular photo posted to Reddit last week, swarms of T. carbonaria rear their young in mesmerizing, spiral-shaped towers called brood combs, linking hundreds of individual egg chambers together into a continuous staircase of unborn baby bees. [Here's What Wasp Faces Look Like Up-Close]




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