today's airborne songbirds descended from the wingless, earthbound dinosaurs...Coelacanth, a modern-day fish, is nearly identical to its 410-million-year-old fossilized counterparts.
But a study published in the Proceedings of the National Academy of Sciences USA contradicts this idea, showing that evolution constantly favors different traits...Some lizards with unique traits, such as stickier toes, survived better in the short term.
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