All major groups of vertebrates have rods in the retina as well as cones.
All major groups of vertebrates have rods in the retina as well as cones.
所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。
All major groups of vertebrates have rods in the retina as well as cones.
所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。