PhyloPic is made free largely through volunteer work (coding and illustration). However, there are some actual costs associated with running the web server. If you would like to help out, any amount is very much appreciated.
Support PhyloPic and other projects by its creator through Patreon.
Send money securely with PayPal™.
PhyloPic relies on a number of other free projects. Helping them helps PhyloPic as well!