Just when you thought wasps couldn't get any creepier:

It sounds like something out of the "Alien" movie series, but wasps that lived during the age of dinosaurs laid eggs inside fly pupae, with the wasps eating the flies from the inside out.

The study, published in the scientific journal Nature, revealed that four new wasp species were found inside fossil pupae that date back to the Paleogene period, approximately 65 million to 23 million years ago. The female wasps would lay their eggs inside the fly pupae and as the wasps grew, they would harvest the flies' bodies as nourishment.
http://www.foxnews.com/science/2018/...nside-out.html