Penguins the first patients at hospital

Hoiho/yellow-eyed penguin patient bedtime routine. After a busy day spent swimming and preening in the rehab pool our gorgeous Hoiho patient is brought inside for dinner and a safe place to sleep for the night. An important part of the husbandry routine for seabirds, including penguins, is to spray them with salty water. This is essential as seabirds drink ocean water to get hydrated. But isn't salt water toxic! If we tried to do this we would die. So what makes seabirds able to do this safely?