Crocodile Tears Are Real (And Could Help Cure Dry Eyes)

The video explores the myth of crocodile tears, revealing that while crocodiles don't cry from remorse, they do exhibit watery eyes during meals. A 2007 study on alligators and Cayman, close relatives of crocodiles, showed that tear film regurgitation occurs due to lung exhalation, causing frothing and bubbling. These reptiles have highly efficient tear films, which are more stable than human tears due to their composition of proteins, electrolytes, and mucus. Understanding these mechanisms could lead to new treatments for dry eyes in humans and enhance our knowledge of tear functions.

What are the components of the tear film that make it stable in crocodilians?

How might understanding crocodilian tear films benefit human health?