Tadpoles undergo surprising number of vision changes when becoming frogs

Tadpoles see well underwater, but what happens when they become frogs and live primarily on land? Researchers, curious about the answer, found the eyes of tadpoles undergo a surprising number of changes. It’s already known that tadpoles go through a physical metamorphosis on their way to becoming a frog, but what wasn’t known is how their vision adapts at a molecular level across the life stages to a strikingly different environment.