What do bird dreams sound like?

For more than 20 years, researchers have known that areas of birds' brains dedicated to singing show neural patterns during sleep akin to the ones they use while awake and singing.

Do food and drink preferences influence migration flows?

When people migrate, many factors play a role in their choice of destination: How well do you speak the new country's language? Do you already have family or a community there? Do the country's values and norms match your ...

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