3 ms·
Sometimes signal is just there regardless. If you hit your tissue hard enough, it becomes blueish for a while (a bruise, a hemorrhage). It may benefit somethin
by wruza 4y ago
Sometimes signal is just there regardless.
If you hit your tissue hard enough, it becomes blueish for a while (a bruise, a hemorrhage). It may benefit something by accident, but a bruise just can’t stay as pink as the rest of you, due to the physics of the process.
(From tfa) Plants exposed to drought stress have been shown to experience cavitation – a process where air bubbles form, expand and collapse in the xylem, causing vibrations
In other words, dry wood cracks.
- rightbyte 4y ago> In other words, dry wood cracks. How dare you translate academic technobabble to common tongue?
- reb 4y agoThe person you’re responding to is talking about other organisms (ie not the tree), which seems compatible with your observation here. Trees might be screaming/bubble-popping into the abyss for simple physical reasons, but if cavitation is very important to some creature, there’s a decent chance that creature has evolved to sense these vibrations.
- TeMPOraL 4y agoRandom guess: woodpeckers might, as for them this may be a way to detect which trees offer most food for least effort. Ironically, something I didn't realize until now, and what also confirms the original point: apparently[0] the drumming itself turned into form of communication for woodpeckers. -- [0] - https://en.wikipedia.org/wiki/Woodpecker#Drumming https://en.wikipedia.org/wiki/Woodpecker#Drumming
- Pompidou 4y agoMaybe this bruise evolved with our social behaviour : most animals skin don't show this, or for higher stress. The bruise is very important in a social envirronment and is a good optimisation for mutual Care.
- _a_a_a_ 4y ago>> (From tfa) Plants exposed to drought stress have been shown to experience cavitation – a process where air bubbles form, expand and collapse in the xylem, causing vibrations > In other words, dry wood cracks. I don't think it's saying that at all