Great Transitions: The Origin of Tetrapods
- AP Biology (2012-2013)
- 1.A.1.a, 1.A.1.b, 1.A.1.c, 1.A.1.d, 1.A.1.e, 1.A.2.a, 1.A.2.b, 1.A.2.c, 1.A.4.a, 1.A.4.b, 1.B.1.a, 1.B.1.b, 1.C.1.a, 1.C.1.b, 1.C.3.a, 1.C.3.b, 1.D.2.a, 1.D.2.b, 4.B.3.a, 4.B.3.b, 4.B.4.b
843Click & LearnGreat Transitions InteractiveThe fossils of transitional creatures were key evidence for Darwin’s evolutionary theory, but none had been found when he published On the Origin of Species. Now, there are many examples of such fossils, which clearly show that big evolutionary leaps consist of many smaller steps.