Person kayaking, adventure travel concept. Free public domain CC0 photo. https://www.rawpixel.com/image/6042888/photo-image-public-domain-nature-personFree Image from public domain licenseA butterfly photographed in the La Selva region of the Costa Rican rain forest.. Original from NASA . Digitally enhanced by… https://www.rawpixel.com/image/440029/free-photo-image-butterfly-insect-selvaFree Image from public domain licenseNASA's DC-8 flying laboratory. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440079/free-photo-image-costa-rica-airborne-science-synthetic-aperture-radarFree Image from public domain licenseMotiquedada Ecologica Mundial 2015 - Caraguatay, Misiones, Argentina. https://www.rawpixel.com/image/6082809/photo-image-public-domain-plant-mushroomFree Image from public domain license