Eli5: how are vines such as grape vines able to grow in the direction of other plants and grow “hands” to wrap around them?

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Eli5: how are vines such as grape vines able to grow in the direction of other plants and grow “hands” to wrap around them?

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They just wave their stems about as they are growing, until they hit something they can wrap around

[Here](https://youtu.be/UG9YmrqyomM?t=61) is a timelapse of some peas doing it