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Smarter Every Day - The Backwards Brain Bicycle - Part 1

Difficulty: Intermediate

USA South

Destin Sandlin, an Alabama engineer and YouTube star, shows us how very difficult it is to learn to ride a backwards bike. You think it's going to be a piece of cake, but it's not!

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Warmup Workout

TED-Ed - How Smart Are Dolphins?

Difficulty: Intermediate

USA

Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only to humans. But exactly how smart are they? This video shares some incredible facts about dolphins.

Matches in Transcript

Caption 64 [en]: Just like humans, they indicated uncertainty more often with difficult trials,
Caption 64 [en]: Just like humans, they indicated uncertainty more often with difficult trials,

Warmup Workout

Evolution - Sea Creatures - Part 1

Difficulty: Intermediate

USA

This segment looks at the advantages and disadvantages of swarm fish and loner fish, providing insight into their coloration and behavior. Spectacular footage reveals twobar sea bream, trumpet fish, barracudas, and harlequin sweetlips.

Matches in Transcript

Caption 6 [en]: Mating also becomes less difficult
Caption 6 [en]: Mating also becomes less difficult

Warmup Workout

Chemistry for All | FuseSchool - What Is The Natural Greenhouse Effect? - Part 1

Difficulty: Intermediate

United Kingdom

Fuse School: To better understand the science behind global warming, it is important to first understand how the Earth's atmosphere functions. This informative video shows the role of gravity and how the electromagnetic spectrum is involved.

Matches in Transcript

Caption 50 [en]: finds it more difficult to get through.
Caption 50 [en]: finds it more difficult to get through.

Warmup Workout

National Geographic - New Human Ancestor Discovered

Difficulty: Intermediate

USA

Within a deep and narrow cave in South Africa, paleoanthropologist Lee Berger and his team found fossil remains belonging to the newest member of our human family. The Homo naledi discovery adds another exciting chapter to the human evolution story by introducing an ancestor that was primitive, but shared physical characteristics with modern humans.

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Caption 26 [en]: The entrance is very, very difficult. To get to it,
Caption 26 [en]: The entrance is very, very difficult. To get to it,

Warmup Workout

Nature & Wildlife - Search for the Ghost Bear - Part 10

Difficulty: Intermediate

USA

The salmon that make it upstream mate and then die of exhaustion. Meanwhile, many other animals are lurking and waiting to feed.

Matches in Transcript

Caption 30 [en]: which is quite difficult in these rapids.
Caption 30 [en]: which is quite difficult in these rapids.

Warmup Workout

Nature & Wildlife - Search for the Ghost Bear - Part 1

Difficulty: Intermediate

United Kingdom

Fascinating footage, our journey begins in Alaska's Katmai National Park, both inhospitable and beautiful. We observe brown bears as they hunt salmon, track the rare glacier bear, and then continue south to British Columbia on our hunt for the rare Kermode bear, also called ghost bear or spirit bear.

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Caption 23 [en]: Landing on the beach is difficult and dangerous.
Caption 23 [en]: Landing on the beach is difficult and dangerous.

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