The Iranian spider-tailed horned viper, a rare snake endemic to western Iran, hunts by holding its body completely still while twitching its tail. Its body camouflages among the rocks of its semi-arid Zagros Mountains habitat, but its bulbous tail with accompanying leg-like scales looks remarkably like a large chunky spider. The snake, Pseudocerastes urarachnoides, uses its [&#…
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