Frogs Rourke Educational Media Don McLeese rourkeeducationalmedia com Teacher Notes available at rem4teachers com
Chapter 1 Double Lives Have you ever imagined what it would be like to lead a double life If you were a frog you could Frogs are members of the animal group classified as amphibians The word amphibian originally meant double life In fact almost 90 percent of amphibians are some kind of frog or toad Frogs begin their lives as water animals This is where the female frog lays her eggs Once the eggs hatch out comes the tadpoles Adult Frog Eggs Embryo 4 Tadpole
Tadpole Some tadpoles are so small they are hard to see although others may be six or seven inches 13-18 centimeters long Tadpoles live in the water and they have long tails to help them swim They eat plants but some of them eat frog eggs or even other tadpoles a frog A number of things change during that time It grows legs It develops lungs which allow it to breathe on land It develops a new digestive system which allows it to eat insects worms and small animals Eventually it loses its tail It takes about 12 to 16 weeks for a tadpole to become Tadpole Frog Start of Pulmonary Breathing Legs Break Through Tadpole 5
