“Apoptosis Network (alternate)” by “Simon Cockell” on Flickr
Featured image is “[Apoptosis Network (alternate)](https://flickr.com/photos/sjcockell/4405616339)” by “[Simon Cockell](https://flickr.com/photos/sjcockell)” on Flickr and is released under a [CC-BY](https://creativecommons.org/licenses/by/2.0/) license.