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  1. Paleontology

    An ancient shark’s weird fins helped it glide like a manta ray

    Nicknamed eagle shark, the newly discovered ancient creature achieved underwater flight 30 million years before the first rays.

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  2. Animals

    Two bonobos adopted infants outside their group, marking a first for great apes

    Female bonobos in a reserve in the Congo took care of orphaned infants — feeding, carrying and cuddling them — for at least one year.

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  3. Health & Medicine

    We still don’t know for sure where the coronavirus came from. Here’s why

    A year into the pandemic, we know the virus probably came from bats, but how and why it leaped to humans are still unknown.