Monday, August 07, 2006

Invertebrate geometer - Mystery Solved

kw: puzzles, geometry, flowers, solutions

In a post on August 2, 2006, I showed a picture of a Phlox flower that looked like a propellor, each petal was chewed on one side only. This image is the clue to solving why a critter (probably a caterpillar) would favor only the left side of each petal.

The opened flower is chewed in the same propellor pattern. The bud next to it, about a quarter opened, lets us see what happened. When a bud gets partway open, and it is still mostly dark, the caterpillar eats the exposed part of each petal quickly, then flees as the sun rises.

The geometric "knowledge" thus resides in the flower bud's DNA, not in the eater.

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