The purpose of the last paragraph is to show that _________.
scientists can use animals to make medicines.
frogs are useful animals.
finding new species is important.
Owls hunt very ______
Patiently
Loudly
How many kinds of plants and animals haven’t been found yet?
More than 6,000,000
Less than 1,000,000
About 1,500,000
Austin and Rittmeyer probably expected to find ________ in the grass.
An owl
An insect
A rabbit
Sloths move ____ in trees.
Slowly
Softly
Why were Austin and Rittmeyer surprised when they found the frog?
The frog’s color matched the leaves perfectly.
There weren’t any known frogs in the area.
It didn’t seem like the sound came from a frog.
The author says that the researchers' jobs are getting more difficult because there are fewer __________.
animals
researchers
labs
Bats fly _____ through the air
Quickly
Badly
Dolphins swim ______ in the water
Gracefully
Sleepily