Frogs
Contributed By
PBS Learning Media
Frogs
A sphinx asks a boy named Ben whether it's good or bad to buy an African clawed frog in a pet store and then release it into a pond, in this animated video from LOOP SCOOPS. Ben initially decides that setting the frog free is a good idea. But after some consideration, he decides that invasive species of frogs may "wreck the place," tipping an ecosystem out of balance.