Friday, 4 September 2015

Animal vs.Human Sight





Cats are dichromats, color blind and their vision is 6 times blurrier than ours during the daytime.






What a sunflower looks like to a bee


Like us, bees are trichromats, however, their photoreceptors are sensitive to yellow, blue, and ultraviolet light. They too have fuzzier vision but can possibly detect between shades of UV light!





They can see red, green, blue, and ultraviolet. An eagle's eye has a resolution that is 2.5 times better than that of a human eye.





Rattlesnakes can also sense infra red light.

"special sensory tools called pit organs—a pair of holes on either side of the snout between the eye and the nostril. Suspended in each pit is a thin membrane that detects heat, says David Julius, a physiology professor at the University of California, San Francisco. Julius discovered that a neural receptor, TRPA1, present in the nerve cells connected to this membrane is responsible for snakes’ ability to transform infrared light into nerve signals. In humans, the same receptor triggers our pain response to certain spicy foods such as wasabi and mustard. But in snakes, it responds to the heat of nearby prey."


#Animal Vision #Not Botany


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