An aspect to the life marine mammals and birds that no one ever considers is how they stay hydrated. Funny enough, even though they spend the majority of their lives in the ocean they can't really drink it...
Many species have various strategies to deal with dehydration by either developing special ways of obtaining fresh water and other physiological ways of maintaining as much fresh water as possible in their bodies, whilst excreting excess salt build up. Penguins are known to scoop up bits of snow and ice to get some of their fresh water needs. Just like this little guy!
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