Nature’s Depths

Walking through nature with John Palka, a neuroscientist who loves plants and ponders big questions

Seeing Colors


Suppose we take a walk in the springtime woods. In the wettest places, the green leaves of the spectacular swamp lanterns blend in well with the surrounding plants, including the mosses, ferns, gymnosperms, and angiosperms we met in a previous post. In contrast, the flowering heads—the lanterns—seem to truly glow a brilliant yellow. Why are the two parts of a single plant so different from one another?

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Our Brightly Colored World


The plants on Yellow Island, situated in the northwestern corner of Washington State, glow with literally all the colors of the rainbow, from blue, through green and yellow, and on to orange and red. They call out a question that scientists and philosophers have asked literally for centuries—how do leaves and flowers come to have the colors they do? Indeed, why are objects of any kind seen by us as having distinguishable colors?

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John Palka Olympic Panorama

To See a World in a Grain of Sand


To see a world in a grain of sand—to peer so deeply into the nature of any one thing that the riches of the Universe begin to be revealed—that to me is the essence of science as a quest. Not as a profession or a career, not as a niche in complex modern society, but as a quest for understanding one’s deepest nature… I hope that the words and pictures that you will find on these posts will convey some of the joy and exhilaration that I have found on my own quest to peer beneath the surface of the natural world.

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