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学科
Owls
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14
Comic books, strips, etc
3
Behavior
1
Birds
1
Christmas stories
1
Circadian rhythms
1
Creation station
1
Dodd, Elaine
1
Enhancing health
1
Larks
1
My Father's world
1
Nature
1
Night
1
Peer pressure
1
People with disabilities
1
Religious Aspects
1
Sabbath-keeping
1
Sleeping customs
1
Tree Felling
1
Trust in God
1