pygmy shrew

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Amazing Animal Hearts

This Valentine’s Day, rather than look at animals’ weird mating rituals or focus on the possibility of a worldwide chocolate shortage, we’re going to stroll down memory lane to examine some …

giraffe, Tanzania, Africa

Valentine’s Day: Some Animals Really Have Heart

Valentine’s Day is the traditional holiday for giving away hearts. But how does a healthy human heart—a hollow ball of muscle about the size of a clenched fist that beats …

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