# Sara Lewis: The loves and lies of fireflies

Biologist Sara Lewis has spent the past 20 years getting to the bottom of the magic and wonder of fireflies. In this charming talk, she tells us how and why the beetles produce their silent sparks, what happens when two fireflies have sex, and why one group of females is known as the firefly vampire. (It's not pretty.) Find out more astonishing facts about fireflies in Lewis' footnotes, below.

- Kind: Talk
- Year: 2014
- Runtime: 13 min
- By: TED.com
- Genres: Education, Science, Nature
- Archive: [Internet Archive](https://archive.org/details/SaraLewis_2014)
- Licence or status: [CC BY-NC-ND 3.0](http://creativecommons.org/licenses/by-nc-nd/3.0/) (as the archive states it)
- Who can watch: Adult profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/SaraLewis_2014?play=1)