Whales and dolphins (cetaceans)
Minke whale: Cetaceans have a fully conscious respiration (while it is automatic in terrestrial mammals). For this reason, only one side of the brain sleeps at a time, meaning that whales are never completely asleep.
Minke whale: Cetaceans have a fully conscious respiration (while it is automatic in terrestrial mammals). For this reason, only one side of the brain sleeps at a time, meaning that whales are never completely asleep.
© Meike Scheidat - FTZ
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