GIVE ME FIVE

The hand is an extraordinary appendix, but is not exclusive to human: we share it with all the primates, but also with bats, cats, frogs and even dolphins. Charles Darwin pointed out this strange coincidence in his The Origin of Species. “What’s more unique,” he wrote, “that the hand of…

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SENSORY ORGANS: DIMPLE THERMOSENSITIVE

Morelia viridis (Schlegel, 1872) also known as green python or python green arboreal. Some snakes family Boidae (boas and pythons) and Crotalidae (rattlesnakes, vipers of the palms) possess a special sensory organs sensitive to heat, the heat-sensitive dimple. These receptors are heat sensitive to infrared radiation of a wavelength of…

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