High-Tech Efforts Save California Red-Legged Frogs
Reading
A scientist studies a pond in California. He uses rubber boots but stays near the edge. He takes out a small device that records sounds for many hours.
The scientist uses a computer to check the sounds. It knows many things about the animals there. It finds owls, woodpeckers, and tree frogs, but no bullfrogs were heard.
Red-legged frogs used to live in many places. They were in California and also in Mexico. Now, there are not many because of other frogs and people.
Scientists took frogs from Mexico to California. They wanted to help the frogs have babies. It was hard to move the eggs because of a sickness and rules about borders.
The scientists heard the frogs making sounds! It meant they were having babies. They are using computers to listen for more frogs and to help them live.
Questions
What does the scientist use to study the pond?
He uses rubber boots.
What animals did the computer find in the sounds?
It found owls, woodpeckers, and tree frogs.
Why are there not many red-legged frogs now?
There are not many because of other frogs and people.
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