A new study suggests that primates, including humans, may have an innate fear of snakeskin due to its visual similarity to real snakes.
new research suggests scales are a key visual cue for primates when detecting these slithering threats.that had never seen real-life reptiles or amphibians before, only pictures of snakes in a previous experiment. As expected, the animals innately responded faster to pictures of However, when the images of salamanders were modified to show them wearing snakeskin, the monkeys responded just as quickly to these pictures as they did to pictures of snakes.
The scaly skin seemed to be an important visual trigger. 'The monkeys did not react faster to salamanders, a species that shares a similar elongated body and tail with snakes, until the images were changed to cover them with snakeskin.' Snakeskin could be another visual factor that primates latch on to when instinctively deciding if something is dangerous – backing up an'This may be because during evolution our primate ancestors evolved a visual system to identify scales, which are characteristic of snakes,'Being able to spot snakes remains crucially important for us as a species if we want to stay alive, which explains why infantsWe'll need to see if the current study can be replicated in people, of course, but there's good reason to think our brains are wired in the same way as our primate relatives. Snakeskin may be a red flag for danger. 'These results are consistent with the snake-detection theory that snakes were a strong selective pressure favoring modifications in the primate visual system that allow them to detect snakes more quickly or reliably,
Primates Snakeskin Fear Response Evolution Visual Perception
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