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Common Ancestry All life on Earth shares a common ancestor that lived billions of years ago, showcasing the unity of all living species.
Dinosaur Relatives Birds are the modern descendants of small, feathered dinosaurs, providing a remarkable link between ancient and modern life forms.
Whale Evolution Whales, despite their marine lifestyle, share a common ancestor with land-dwelling mammals. Over millions of years, they evolved from terrestrial creatures into the marine giants we know today.
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Human Evolution Humans are part of the primate family tree and share a common ancestor with apes. Our lineage has evolved over millions of years, leading to Homo sapiens.
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Peppered Moths The story of the peppered moths in England during the Industrial Revolution is a classic example of natural selection, where dark-colored moths became more prevalent due to environmental changes.
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Coevolution Species often evolve in response to each other. For instance, the long tongue of a hummingbird has coevolved with the deep, tubular flowers it feeds on.
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Extinction Events Earth has experienced several mass extinctions, the most famous being the one that wiped out the dinosaurs around 66 million years ago. These events shaped the course of evolution.
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Convergent Evolution Unrelated species sometimes develop similar traits or adaptations due to similar environmental pressures. For example, the streamlined bodies of dolphins and sharks evolved independently.
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The Cambrian Explosion About 540 million years ago, there was a sudden burst of biodiversity known as the Cambrian Explosion, during which many major animal groups first appeared in the fossil record.
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Evolution of Eyes The evolution of eyes in various species, from simple light-sensitive cells to complex camera-like organs, showcases the power of natural selection in creating remarkable adaptations.
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