CREDITS
The tardigrade picture in episode 2 is from Goldstein lab - tardigrades, licensed under the Creative Commons Share Alike 2.0.
Link to the license
The photo used in episode 3 was originally posted to Flickr by Kevin M. Gill at
https://www.flickr.com/photos/53460575@N03/8165909516
and is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license
https://creativecommons.org/licenses/by-sa/2.0/deed.en