Page 301 - The Miracle in the Cell Membrane
P. 301

Starfish
                  Period: Ordovician
                  Age: 500 to 440 million
                  years old
















                                                 Birch Leaf
                                                 Period: Eocene
                    A 125-million-               Age: 50 million years old
                    year-old fossil
                    cicada




















                                                         A 50-million-
                                                         year-old fossil
                                                         sequoia leaf
   296   297   298   299   300   301   302   303   304   305   306