Dallis divinity 2
- Such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). Most of the Paleozoic crinoid species attached themselves to substrates on the ocean floor.
- The broad band in the center is a disrupted chaos-type features that may be signs of interaction with an subsurface ocean. Credit: NASA/JPL-Caltech/SETI Institute To support life as we know it, a world must have three essential ingredients: liquid water, the right chemistry and a source of energy for life.
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