Check out this amazing photo series that shows a father and son adopting the same pose for three decades.

Tian Li was born in the summer of 1986 in southeastern China’s Guizhou Province. His father, then 27, took the first photo with him on his birthday.

1986.

1986

1987.

1987

1988.

1989.

1989

1990.

1990

1991.

1991