Marine Biology

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Paleontology: Ancient Marine Reptiles (Coursera)

Paleontology: Ancient Marine Reptiles is a four-lesson course teaching a comprehensive overview of the evolutionary changes that occur when air-breathing terrestrial animals return to water. This course examines the diversity, adaptations, convergence, and phylogenetic relationships of extinct marine reptiles. Students will explore three major groups of marine reptiles: ichthyosaurs, [...]

Marine Biology (

Legacy Course
Marine Biology (
Free Course
Marine Biology is the study of ocean life. As you might expect, life in salt water is vastly different from life in a terrestrial or freshwater environment due to factors like salinity, water circulation, and atmospheric pressure. How, for example, can organisms living in salt water avoid dehydration? [...]