Electric Eel (2017) by Roshan Patel. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060546/free-photo-image-cc0-fish-amazing-animalFree Image from public domain licenseElectric-Eel png sticker, fish vintage illustration, transparent background https://www.rawpixel.com/image/9338270/png-art-stickerView licenseElectric-Eel (Gymnotus Electricus) from Ichtylogie, ou Histoire naturelle: génerale et particuliére des… https://www.rawpixel.com/image/938843/gymnotus-electricusFree Image from public domain licenseVintage illustration of Electric-Eel (Gymnotus Electricus) https://www.rawpixel.com/image/938322/vintage-fish-illustrationView licenseTitelhoofd met palingen (1893) by Gerrit Willem Dijsselhof, Joh Enschedé and Zonen and Scheltema and Holkema s Boekhandel https://www.rawpixel.com/image/13777009/image-paper-art-patternFree Image from public domain license