Mutant Silkworms Spin Fluorescent Silk in 3 Colors
Silkworms in a Japanese lab are busy spinning silks that glow in the dark. But these silkworms, unlike others that have been fed rainbow-colored dyes, don’t need any dietary interventions to spin in color: They’ve been genetically engineered to produce fluorescent skeins in shades of red, orange, and green.
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