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What is the 'tree of life'?The tree of life maps out the relationships between all living things, and it's in constant flux.
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Continental collision 2.1 billion years ago may have sparked '1st attempt' at complex life on EarthResearchers have laid out the case for complex life evolving 2.1 billion years ago, but not everyone is convinced it started so early.
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Last Chance Lake: The unusual 'soda lake' with conditions that may have given rise to life on EarthScientists consider Last Chance Lake to be an analog for lakes that may have existed on Earth 4 billion years ago and contained the ingredients for early life on our planet.
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Y chromosome is evolving faster than the X, primate study revealsThe male Y chromosome in humans is evolving faster than the X. Scientists have now discovered the same trend in six species of primate.
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Genomes of 51 animal species mapped in record time, creating 'evolutionary time machine'Using a new technique, scientists created genetic blueprints for kangaroos, penguins, sharks and more.
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How 10 animals evolved their iconic featuresWhy are whales so big? Why are giraffe's necks so long? Here are the origins of 10 iconic features in the animal kingdom.
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Why can't we smell ourselves as well as we smell others?It isn't true that we can't smell ourselves, although we do become habituated to our own scent.
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Are legs more important than arms?Whether arms or legs are more important depends on the species and the environment.
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Invisible barrier that runs through Indonesia finally explained by scientistsResearchers now understand why there is an uneven distribution of animal species on either side of the mysterious boundary, known as the Wallace Line.
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