Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
어류학은 물고기의 생태와 진화를 연구하는 학문입니다.Eoryuhak-eun mulgogi-ui saengtaewa jinwha-reul yeonguhaneun hakmun-imnida.Ichthyology is the study of the ecology and evolution of fish.