Poison dart frogs have an ominous and well-deserved reputation as a lot of death stuffed into a teeny, neon package, and none is more dangerous than Colombia’s golden poison frog (Phyllobates terribilis). With skin slaked with enough of the potently neurotoxic batrachotoxin (BTX) to kill a staggering 20,000 mice, the golden poison frog somehow doesn’t poison itself. A team of scientists have now pinpointed how the frogs survive their lethal secretions: a single genetic mutation that results in full immunity to BTX.
Bees are dying fast and that’s not good for people who like plants and food. Yesterday, the U.S. Fish and Wildlife Service determined that members of seven yellow-faced bees from the Hylaeus species require federal protection. If you’re in Hawaii where this brand of bee resides, you might want to think twice before swatting.