It has long been assumed that the owl has high scotopic sensitivity. Investigators have long since been interested in the research of the visual function of owls in dim illumination. It was considered that owls were a...It has long been assumed that the owl has high scotopic sensitivity. Investigators have long since been interested in the research of the visual function of owls in dim illumination. It was considered that owls were able to detect infrared rays. However Hecht et al. denied this idea. By means of behavioral experiment, Dice also demonstrated that owls were capable of catching prey on the basis of ordinary vision instead of the sensitivity to infrared rays in dim illumination. Fire observed that there was high展开更多
文摘It has long been assumed that the owl has high scotopic sensitivity. Investigators have long since been interested in the research of the visual function of owls in dim illumination. It was considered that owls were able to detect infrared rays. However Hecht et al. denied this idea. By means of behavioral experiment, Dice also demonstrated that owls were capable of catching prey on the basis of ordinary vision instead of the sensitivity to infrared rays in dim illumination. Fire observed that there was high
