There's something super satisfying about learning cool new facts. Maybe it triggers endorphins, or something. (Ed Note: Be sure to look that up and find out.) Anyway, whatever the reason, we're always running across cool knowledge, and the least we can do is share it so everyone can have a good brain day.

Please enjoy the following:

Wasps use complex chemical signals called alarm pheromones to defend their colonies. Intruders are sprayed and thus 'marked,' rousing the colony & coo

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