Facts about Sea snakes
Sea snakes, also known as coral reef snakes, are a subfamily of venomous elapid snakes related to cobras. There are about 50 different species of sea snake, spread across the tropical waters of the Indian and Pacific oceans.
Sea snakes are extensively adapted for aquatic life, with small heads and flattened tails to aid swimming. Unlike fish or eels, sea snakes do not have gills and instead have to surface regularly to breathe. They have special flaps over their nostrils that close when underwater and can die for an average of about 30 minutes, though some can spend over an hour underwater. Sea snakes also have special glands under their tongues that collect salt from the blood, which they eject back into the water by flicking their tongues.
Sea snakes are highly venomous and should be treated with caution. However bites on humans are rare, and bites with venom injection are even rarer.
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