uk.whales.org

78Mlp TIL that dolphins sleep with one eye open because they need to be consious in order to breathe. If they slept like humans, they would suffocate or drown.
16Vr7 TIL that Dolphins sleep with one eye open
vPaDr Today I learned that whales can’t breathe underwater. They come to the surface to breathe and then go underwate to hunt.