A transparent animal doesn't have pigments, so its tissues won't absorb light.
透明生物的体内没有色素,因此它的细胞组织不吸收光线。
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Some of its fossils are so well preserved that scientists can see traces of cell structures that contained pigments. The finding led to colorful views of the cat-size animal, down to its striped tail.
The Carotenoids are the most diverse and widespread group of pigments in nature and serve an extraordinary variety of functions in plant, animal, algae and cyanobacteria.