Biological Evolution: Unity and Diversity

  1. Animals

    The end of the dinosaurs appears to have come in springtime

    Fish fossils from North Dakota suggest when the Chicxulub asteroid devastated Earth, triggering the mass extinction of dinosaurs and other species.

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  2. Life

    Explainer: What is an endangered species?

    Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.

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  3. Fossils

    Dinos may have had the sniffles 150 million years ago

    A respiratory infection that spread to air sacs in the vertebrae of a sauropod dinosaur likely led to the dino's now-fossilized bone lesions.

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  4. Animals

    Newfound ‘bambootula’ spider lives inside bamboo stems

    A YouTuber discovered a new tarantula genus living in bamboo near his home in Thailand. It’s the only tarantula known to choose such a habitat.

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  5. Archaeology

    Our species may have reached Europe while Neandertals were there

    Archaeological finds from an ancient French rock-shelter show periodic settlements by both populations, just not at the same time.

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  6. Animals

    A new drug mix helps frogs regrow amputated legs

    The treatment helped frogs grow working limbs useful for swimming, standing and kicking. It’ll be a while before people can do that.

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  7. Animals

    See the world through a jumping spider’s eyes — and other senses

    Scientists are teasing out the many ways the spiders’ vision, listening and taste senses differ from ours

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  8. Animals

    Mysterious kunga is the oldest known human-bred hybrid animal

    People bred these animals — part donkey, part wild ass — some 4,500 years ago, probably for use in fighting wars.

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  9. Animals

    Scientists discover the first true millipede

    The newfound deep-living species tunnels belowground using a whopping 1,306 legs!

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  10. Animals

    As the tropics warm, some birds are shrinking

    Migratory birds are getting smaller as temperatures climb, studies had showed. New evidence shows dozens of tropical, nonmigratory species are, too.

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  11. Animals

    Let’s learn about chimpanzees and bonobos

    Humankind’s closest cousins in the animal kingdom may look similar, but in terms of behavior, they’re polar opposites.

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  12. Life

    Scientists Say: Adaptation

    This word refers to a feature of a living thing that helps it better survive in its environment — or the process of that feature evolving in a population.

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