Lens-Free System Shows Spiraling Swimming Pattern of Human Sperm

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A new three-dimensional imaging technique has shown the spiraling movements that human sperm accomplishes while swimming. Previously, these movements had only been inferred from two-dimensional data.

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Baleen Whales Disturbed by Underwater Noises From 120 Miles Away

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It’s a well-known fact that noises carry a lot further underwater than in the air, but recently marine biologists noticed that underwater noises might disturb whales even if they are 120 miles away.

Read more @ SciTechDaily