👉 Paleichthyology is a field of biology that focuses on the study of marine animals and their adaptation to aquatic environments. It includes the study of fish, which are aquatic animals, and other marine invertebrates such as clams, oysters, and sea urchins. Paleichthyologists study the anatomy, physiology, behavior, and ecology of these animals, with a particular focus on their role in supporting ecosystems and contributing to biodiversity.