TIL that frogs, sharks, salamanders and a few other cold-blooded creatures have a third eye that helps them thermoregulate called the "pineal eye" (bc it works with the pineal gland)
TIL that frogs, sharks, salamanders and a few other cold-blooded creatures have a third eye that helps them thermoregulate called the "pineal eye" (bc it works with the pineal gland)
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