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Biology

The Physiological Costs of Long-Distance Migration in Shorebirds

Quick fact

During a single non-stop migration flight, a shorebird may lose up to 50% of its body mass, much of it from fat stores, and may experience measurable shortening of its telomeres—a cellular sign of aging.

Why this is interesting

Bar-tailed godwits fly non-stop for over 11,000 kilometers, but what does such an epic journey do to their bodies?