Berlin's panda twins, Leni and Lotti, turned one year old The twins enjoyed frozen vegetable treats A candle made of bamboo shoots was given to them The twins were born at the Berlin Zoo on August 22nd Each panda was named with a Chinese and a German name Lotti is described as the more adventurous panda Leni is described as the more relaxed panda Each panda currently weighs approximately 21 kilograms.