How has sparrow evolved in human society?

The finches have a scientific name, Passer domesticus, which is a small member of the Seine family. It is easy to see small, gray and brown birds in every continent except Antarctica, jumping around cities, slaughtering leftovers on the sidewalk, and occasionally chasing native birds.

The natural selection process has changed the shape of the skull and gave them new skills to digest starch , similar to dogs.

Birds will also be able to digest starch.

Historically, house sparrows are mentioned in the Bible, Chinese poetry, and The Canterbury Tales fairy tale. However, up to now, the house-sharing is separate from the shared species to be close to humans is still a mysterious question.

Sparrows often appear on the street.

When searching for answers to this question, scientist Mark Ravinet and colleagues collected information on four main species in the Eurasian family: 46 sparrow, 43 Spanish sparrow, 31 species of Italian sparrow. and 19 Bactrianus sparrows. They analyzed DNA decoding and compared the genetic sequences of their finches and their closest wild relatives, the Bactrianus. The team found that many areas of the house finch genome have been active to help them thrive with humans.

The most important sign in sparrow DNA is found in an area with two genes: a gene involved in the development of the skull and another gene that helps produce the amylase enzyme, an enzyme that helps break down starch like like people, dogs and some other animals. These changes help the home to eat artificial food.

Sparrows become very popular in villages and cities.

Ravinet's group plans to study more closely the variants of both genes, as they are not sure how these genes have changed the appearance and behavior of birds. The next step, he examined the finch diet and see if any changes in the skull helped increase the bite force, which would help the birds eat stiffer seeds scattered on their farms. human.

Sparrows have a characteristic gray-brown coat.

The analysis also showed that the house finches and Bactrianus finches separated from each other about 11,000 years ago, at the beginning of the new Stone Revolution, when agriculture was first developed in the Middle East. Evolutionary biologist Samuel Andrew, who studies finches at Macquarie University in Sydney, Australia, said the work is an exciting new step for bird researchers, which can answer many questions about how Scattering sparrow species to accommodate their different habitats. However, he and Ravinet agree that there may be changes to other genes that were missed in this initial analysis, but still help birds to take advantage of humans.

If you live in a big city, there are many animals around you. Each species itself has a history and a story to tell. And it is the human existence that increases the liveliness and adaptability of the species.