Like yin and yang: the tarantula's gynandromorphism can be seen with the naked eye. Image courtesy of Fernando Pérez-Miles and Álvaro Laborda The stunning specimen you can see above was the first documented instance of a tarantula with gynandromorphic characteristics: one side of its body is female, while the other is male. The case first came to light in 2014 at a lab at the University of the Republic in Uruguay when a team of bug experts was observing a bunch of orange baboon tarantulas (Pterinochilus murinus) that had just molted into adulthood. After emerging from its former exoskeleton, one...