May 16, 2015

Q.1689

Shown is the fish of Opah species. It was discovered on 15th May 2015. These fishes are found in deep waters off the US, Australia etc.
They are the world’s first species to have a certain peculiar feature. This exists because they have an internal system (similar to a car radiator) within their gills to conserve ___ and it flaps its fins to raise ____.

What is this uniqueness we’re talking about?


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