This area is covered with light sensitive cells known as cones.
这个称为锥细胞的感光细胞所覆盖。
So the researchers placed the brittle stars in an environment with black-and-white-patterned walls, aimed at testing whether the creatures were simply light sensitive—which isn't the same as vision—or if they could truly see.
因此, 研究人员将海蛇尾置于具有黑白图案墙壁的环境中,旨在测试这些生物是否只是对光敏感——这与觉不同——或者它们是否真的能看到东西。