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Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
Science & Technology
The material that could change the world... for a third time
Lesson duration 05:27
Science & Technology
3 bizarre (and delightful) ancient theories about bird migration
Lesson duration 05:42
Science & Technology
The big-beaked, rock-munching fish that protect coral reefs
Lesson duration 05:05