Photograph by David Liittschwager, National GeographicA translucent body disguises a larval flounder to keep it safe from predators. It will lose this defense mechanism later in life. Flounder undergo several striking physical transformations during their lifetimes. Very young flounder swim upright and have an eye on each side of their face. As they age the fish begin to swim on their sides and one eye slowly migrates until both are on the body’s “top side.”
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