[Rockhounds] OT: Blazes of light reveal how plants signal danger long distances

[Kreigh Tomaszewski]

In one video, you can see a hungry caterpillar, first working around a
leaf's edges, approaching the base of the leaf and, with one last bite,
severing it from the rest of the plant. Within seconds, a blaze of
fluorescent light washes over the other leaves, a signal that they should
prepare for future attacks by the caterpillar or its kin.

The biosphere and geosphere are intertwined by fluorescence.

Read more at:
https://phys.org/news/2018-09-blazes-reveal-danger-distances.html#jCp

Kreigh