A stingray that got pregnant this winter despite not having shared a tank with a male of her species for many years has died, a North Carolina aquarium says
They killed her before stingray Jesus could come back and forgive the sins of all the stingrays. After they killed Steve Irwin, they’ve all been damned to Hell.
(Most animal classes in the animal kingdom have parthenogenetic species, but there are no known cases in mammals that have not been artificially induced.)
It's weird, but it makes sense as a last ditch effort to bridge a population bottleneck. Just because we haven't witnessed something doesn't make it impossible.