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“...when [a black widow spider] is hungry, it can also draw its legs into a "crouch"--a sensory power pose that retunes its joints to higher frequencies...this stance might shift the spider's Umwelt toward the movements of smaller prey. It might also help it to ignore the low frequencies of wind. It's like a postural squint, which allows the spider to focus its attention. The analogy isn't exact, though, since squinting helps us to focus on particular parts of space. Here, the black widow's posture focuses on different parts of information space. It's as if a human could emphasize the red parts of our vision by squatting, or single out high-pitched sounds by going into downward dog.” — Ed Yong
...when [a black widow spider] is hungry, it can also draw its legs into a "crouch"--a sensory power pose that retunes its joints to higher frequencies...this stance might shift the spider's Umwelt toward the movements of smaller prey. It might also help it to ignore the low frequencies of wind. It's like a postural squint, which allows the spider to focus its attention. The analogy isn't exact, though, since squinting helps us to focus on particular parts of space. Here, the black widow's posture focuses on different parts of information space. It's as if a human could emphasize the red parts of our vision by squatting, or single out high-pitched sounds by going into downward dog.