Although not a scientific breakthrough, I can relate.

One day a coworker comes to me with an IP phone and exclaims "man you can't believe this!" puts phone on my desk, ants and eggs start pouring from the unit.

While he's sent to do intern grunt work as punishment, I try to summon what little I learned in biology and at the end of the day what was supposed to be just a note to check the pest control schedule ended being what could pass as a good Biology essay being filed as important server documentation.

Apparently certain ants are "evolving" to just use our toaster farms as winter shelters instead of just doing what ants usually do.

Discovering a new species as me: