Based on the Chinese zodiac, we can guess the zodiac sign that the egg laid this year belongs to. My guess is that the egg laid this year was laid by a chicken. The reason is very simple: we know that the chicken is one of the twelve signs of the Chinese zodiac, and it lays a lot of eggs. Therefore, it is very likely that the Chinese zodiac sign to which the guessed egg laid this year belongs is chicken. In addition, although the Chinese zodiac is fixed, there are leap months in the Chinese lunar calendar that result in two of the same zodiac sign appearing in a given year. For example, 2029 and 2041 are both years of the Rooster, so if this year is a leap year, it is possible that the egg laid will also be from the year of the Rooster. So, based on the above analysis, we can guess that the Chinese zodiac sign to which the egg laid this year belongs is chicken.