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phys.org
R7yE1
TIL an unknown black organic material was found preserved on 2 altars at the entrance to a shrine's holy of holies, part of a fortress guarding the southern border of biblical Judah. Testing them found frankincense and cannabis, the first time the latter has been identified in the Ancient Near East.
YpbGW
TIL fish can be 'right handed.' When hunting or being hunted, fish typically have a side for attack or direction to turn when chased. 'left handed' fish may find themselves separated from the school by a sudden turn when chased by predators.
v1x84
TIL prairie dogs can warn others of their species about the type of predator, its direction, and even its color with just a single call.