A fascinating look at how and why some animals haven't changed much
since prehistoric times.
Meet the coelacanth, horseshoe crab, dragonfly, tuatara, nautilus, and
Hula painted frog. All are living fossils, or modern-day animals that
very closely resemble their ancient relatives. Why have they changed so
little over time, while other animals evolved or went extinct? Using
contrasting "then" and "now" illustrations, veteran nonfiction writer
Caroline Arnold alternates between a prehistoric creature in its native
environment and its contemporary living-fossil counterpart.