A cat and a dog represent easy care. The medical conditions of that era were not good, and parents wanted their children to grow up carefree, so those who were also called cats and dogs. People whose names were named after cows generally wanted their children to grow up carefree. Your children should do more practical things. As for chicken and duck, there are very few names for them. This is because chicken and duck are used for food in rural areas and have derogatory connotations in cities.