Elephant seals can travel for 7-8 months on the high seas, far away from land. In order to get some sleep they developed the ability to dive for some sleep – they stay for a few minutes on the surface then go for a 30-minute dive, and when they are deep enough to avoid predators they take a 10-minute nap while holding their breath.
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Oded Rahav is a serial entrepreneur, environmental activist, or broadly- a change generator. Oded is one of six swimmers who swam across from Cyprus to
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