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Materials scientists are cooking up environmentally friendly polymers from natural sources like silk, plant fibers and whole algae. Economics and acceptance remain hurdles.
Before the formidable bird went extinct, scientists say, it likely hunted the islands’ flightless moa. Now evidence suggests the eagle was part of a wave of feathered invaders, and its story holds lessons for today and the future.
The wet landmasses, though inherently impermanent, have been essential to both people and wildlife for thousands of years. But recent shifts have brought on some rapid losses that worry scientists.
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