Marine iguanas maintain homeostasis by sneezing excess salt out of their bodies.
When a marine iguana ingests large amounts of salt with its food, it is able to eliminate the excess salt through specialized nasal glands. These nasal glands help the iguana sneeze out the excess salt, preventing it from accumulating in their bodies and disrupting their internal balance. By eliminating the excess salt through sneezing, marine iguanas are able to maintain homeostasis and keep their salt levels in check.