new experiment subject (Patreon)

This one was the theme week picture. The theme of the week is "aquatic sphinx".

https://pbs.twimg.com/media/FF5Wa1bWQAQ2gvS.jpg

other pictures coming from stock or cc0 licences pictures :

https://commons.wikimedia.org/wiki/File:Crayfish_before_neurobiology_experiments.JPG