Showing posts with label plants. Show all posts
Showing posts with label plants. Show all posts

Thursday, September 29, 2016

Are we all narcissists?

Ann Althouse:
I agree that people are gaga for animals and focus on them far more than on plants and (I would add) on the nonliving aspects of the natural world — rock formations, land, water, clouds. What's going on there? The animals are not more beautiful. It might have to do with an inborn instinct to hunt, and it might be that they have faces and eyes and we see ourselves in them, we narcissists.
Read more here.

Monday, December 30, 2013

How smart are plants?

Plants have electrical and chemical signalling systems, may possess memory, and exhibit brainy behavior in the absence of brains. Construction by Stephen Doyle.

Michael Pollan writes in the New Yorker,
Plants have evolved between fifteen and twenty distinct senses, including analogues of our five: smell and taste (they sense and respond to chemicals in the air or on their bodies); sight (they react differently to various wavelengths of light as well as to shadow); touch (a vine or a root 'knows' when it encounters a solid object); and, it has been discovered, sound. In a recent experiment, Heidi Appel, a chemical ecologist at the University of Missouri, found that, when she played a recording of a caterpillar chomping a leaf for a plant that hadn’t been touched, the sound primed the plant’s genetic machinery to produce defense chemicals. Another experiment, done in Mancuso’s lab and not yet published, found that plant roots would seek out a buried pipe through which water was flowing even if the exterior of the pipe was dry, which suggested that plants somehow 'hear' the sound of flowing water.