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04:19 Science & Technology Why is biodiversity so important? Lesson duration 04:19 Manage Library 4,111,052 Views
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04:03 Science & Technology The effects of underwater pressure on the body Lesson duration 04:03 Manage Library 624,632 Views
04:30 Science & Technology How do geckos defy gravity? Lesson duration 04:30 Manage Library 1,567,560 Views
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03:53 Science & Technology Where did Earth’s water come from? Lesson duration 03:53 Manage Library 1,737,440 Views
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04:31 Medical Conditions Why it’s so hard to cure HIV/AIDS Lesson duration 04:31 Manage Library 2,948,467 Views
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05:14 Health How brain parasites change their host's behavior Lesson duration 05:14 Manage Library 4,677,071 Views
03:37 Health How does the thyroid manage your metabolism? Lesson duration 03:37 Manage Library 1,085,020 Views
04:37 Science & Technology The law of conservation of mass Lesson duration 04:37 Manage Library 2,056,080 Views
03:21 Growth & Development What does the pancreas do? Lesson duration 03:21 Manage Library 1,096,322 Views
05:42 Science & Technology How we think complex cells evolved Lesson duration 05:42 Manage Library 864,691 Views
05:44 Design, Engineering & Technology The sonic boom problem Lesson duration 05:44 Manage Library 5,018,898 Views
05:07 Growth & Development Why are some people left-handed? Lesson duration 05:07 Manage Library 10,385,060 Views
04:28 Biological Bases of Behavior How do dogs "see" with their noses? Lesson duration 04:28 Manage Library 2,267,849 Views
