mral studyNow
← Science Unit 1: Evolution

Learn the core

Grade 8 evolution, one idea at a time. Then the Section 1 quiz.

Screen 1 of 19

5%

Evidence for Evolution

An arm, a whale flipper, and a bat wing with the same bones, a whale with tiny hip bones, and a bird wing beside an insect wing.

Several kinds of clues show that living things changed from earlier ancestors.

Open a clue below. Each one is its own screen.

Example. Shared bones, leftover parts, and parts that only look alike are three different clues.