Eyeless roundworms may have hacked other cellular warning systems to give themselves a form of color vision. By Veronique Greenwood In the warm, fetid environs of a compost heap, tiny roundworms feast ...

The microscopic roundworm, Caenorhabditis elegans, might be Earth's secret superhero. These tube-shaped creatures, which thrive on rotting vegetation, may seem unremarkable at first glance. But this ...

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Image of the alvinellid worm, Paralvinella hessleri. A P. hessleri specimen with buccal tentacles extroverted, lateral view. Note that the animal has a bright yellow ...