Abstract
The article investigated the ability of gray seals to develop a differentiating conditioned reflex to light sources with different wavelengths corresponding to red, yellow, green, cyan and blue colors. According to the obtained data, light sources with different wavelengths can serve as an irritant for the gray seal, which produces a conditional differentiation reflex. The development of a differentiating conditioned reflex to the light source occurs in the studied gray seals much faster than on color painted objects. The results of the experiment showed the presence of protanopia in the studied gray seals.
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