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Lesson 2 Cooperation in the Animal Kingdom
BIRDS
Pied flycatchers are small birds that cooperate in dangerous situations.
When a predator enters a flycatcher’s area, the flycatcher makes a loud sound for help.
Other flycatchers hear the call, and they come to help.
As more and more birds join the group, the predator becomes frightened and runs away.
It is important to note that flycatchers go to the aid of another bird in danger only if that bird has helped other birds in the past.
They do not answer the calls of birds that have refused to help others before.
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