Covers use of vestigial structures and embryology in understanding evolution.
Reviews vestigial structures and embryology.
Practice Structural Evidence for Evolution questions
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Scientists have learned that some mantas rays are homebodies and some are rovers, and it seems this has led to some speciation.
Learn about vestigial organs with the examples of the flightless cormorant, which dries its wings even though it cannot use them.