Natural selection favors red-eyed tree frogs that hatch within the optimal time frame because embryos hatching more than two days early are underdeveloped and less likely to survive. If early hatching leads to lower survival rates, the genetic traits associated with earlier hatching will be selected against, maintaining hatching within the safe timeframe.
red-eyed tree frogs can hatch up to two days earlier than average if they experience vibrations in their environment. if they hatch more than two days earlier, the embryos are not developed enough to survive outside of the egg. in 1-2 sentences explain how natural selection keeps frog eggs from hatching earlier than two days before expected haching
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