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The epic journeys of migratory birds
www.nationalgeographic.com

The epic journeys of migratory birds

We’re learning more about what they endure as they fly thousands of miles—and how humans and climate change are making it tougher for them.
Billions of coral sperm banked in a race to save reefs

Billions of coral sperm banked in a race to save reefs

In the wake of mass bleaching events, scientists are building a huge repository of frozen sperm to ensure the future of these key ocean species.
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