...-mail: rwehner@zool.unizh.ch 19 4 2001 © The Company of Biologists Limited 2001 2001 polarized light underwater vision e-vector compass contrast enhancement optical signalling Cataglyphis spp. There is an abundance of polarized light in natural environments, but there are only...

... skylight polarization e-vector compass sun compass navigation The reason for this sudden rise in interest was twofold. First, there existed some animal species endowed with a complex sensory capacity that extended beyond our human ken. In this context ‘polarization vision’ was regarded...