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CynthiaW's avatar

MarqueG mentioned that a question arose last week about the status of the rock pigeon, identified as "feral" in my survey of pigeon species.

The rock pigeon or rock dove, Columba livia, was domesticated as a source of meat and eggs in the Middle East - Mesopotamia, Anatolia, those places - at last 5,000 years ago. An animal is considered "domesticated," as opposed to "kept in captivity," when the captive population shows significant physical, behavioral, and genetic change from wild populations.

For example, domesticated animals are usually consistently larger than their wild relatives. Because they are fed by people, they often lose the ability to find food for themselves. Except for breeding males, domestic animals are usually less aggressive among themselves than wild animals. They are usually less mobile.

Pigeons were kept as a farm animal for millennia before Europeans discovered America. They were brought to North America as a food animal by European colonists. Some of these pigeons escaped - like horses and hogs did - and established flourishing wild - technically "feral" - populations over the next several hundred years. There are also feral pigeon populations in Europe and Asia.

Other examples of ancient feral populations are the "wild" goats found on Mediterranean islands such as Crete. These goats were brought from the Asian mainland, as domestic animals for meat, milk, and hides, by people more than 10,000 years ago.

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CynthiaW's avatar

Camp anecdote: One of my clothing items that fell in the mud during the storm Wednesday evening was a pair of olive-green pants from the athletic gear section at Walmart. I didn't take them to the laundromat in Marion on Wednesday because I didn't want all that mud in the load. On Thursday, I scraped a lot of the mud off and washed them with a few other items.

All the other items ended up with mud on them, and the pants didn't look a bit cleaner. On Friday morning, I gave them another wash, in hot water with more detergent. Still dirty. "What in the world?" I said. "I can scrape this off with my fingernail!" So I washed the pants in the sink with dish soap and a plastic dish scrubber. That got the mud off.

We all know that the negative electrical charge of clay particles is a critical element in nutrient cycles throughout the biosphere. Maybe there's something about this synthetic fabric that attracts clay with a powerful positive charge. Also, top-loading, no-agitator washers are an idiotic design, obviously engineered by someone who had never done laundry in his life. You might as well put clothes in a bucket, barely cover them with water, and occasionally walk by and kick the bucket.

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