did-you-kno: Dolphins sleep with one eye open. When a dolphin goes into deep sleep mode, only one half of their brain rests at a time while the other half remains active, keeps an eye out for predators, and prevents them from drowning. Thanks to

sideboob | sign gifs | easterneuropeangirls

did-you-kno: Dolphins sleep with one eye open. When a dolphin goes into deep sleep mode, only one half of their brain rests at a time while the other half remains active, keeps an eye out for predators, and prevents them from drowning. Thanks to

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