53min - Scientists are coming to understand fat as a dynamic organ--one whose size may have more to do with biological processes than personal choices. Explore the mysteries of fat, and its role in hormone production, hunger, and even pregnancy.
53min - What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight, and flying skills. And, in-the-nest footage of a new bald eagle family captures the drama of chicks struggling to survive.
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