According to an article in the journal Science, the opah is a rarity: A warm-blooded fish that can swim fast by flapping its fins like water wings as it speeds through the water. The movement speeds the opah's metabolism and heats its blood, leading to better reaction times, according to researchers.
A. Rhinitis is an inflammation of the tissues inside the nose. It causes sneezing, runny nose and stuffy nose. It is often accompanied by conjunctivitis (itchy, watery eyes). Most often it is caused by an allergy or an infection.
Other things can cause a runny nose, such as exposure to cold weather. If you've never been diagnosed with nasal allergies, this would be a good time to see your health care provider to determine if your runny nose is caused by allergies or not.