Biologist Katharine Edmonson asked the young boy who approached her table if he wanted to hold the tiger skull in his hands.

Over the years, a Nashville Zoo event has grown into a beloved tradition for families. When we heard about it, we had to see it too.

Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans.

Scientists have dated the skeleton of an ancient child that caused a stir when it was first discovered because it carries ...

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