This photo taken on Aug. 24baccaratcounting, 2024 shows giant panda cub Katyusha at Moscow Zoo in Moscowbaccaratcounting, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Sept. 23, 2023 shows giant panda cub Katyusha in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Aug. 24, 2024. (Moscow Zoo/Handout via Xinhua)

Giant panda cub Katyusha plays at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Aug. 15, 2024 shows giant panda cub Katyusha (L) and her mother Ding Ding at Moscow Zoo in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Cao Yang)

This photo taken on Aug. 24, 2024 shows giant panda cub Katyusha at Moscow Zoo in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Giant panda cub Katyusha plays at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Aug. 24, 2024 shows giant panda cub Katyusha (R) and her mother Ding Ding at Moscow Zoo in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Staff members prepare a birthday treat for giant panda cub Katyusha at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Aug. 28, 2023 shows giant panda cub Katyusha and her mother Ding Ding in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Aug. 24, 2024. (Moscow Zoo/Handout via Xinhua)

A child poses for photos with a billboard of giant panda cub Katyusha in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Giant panda cub Katyusha is pictured at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Performers stage a shows in celebration of giant panda cub Katyusha's birthday in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Aug. 24, 2024 shows giant panda cub Katyusha (L) and her mother Ding Ding at Moscow Zoo in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Giant panda cub Katyusha plays at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

This photo taken on Aug. 24, 2024 shows giant panda cub Katyusha (R) and her mother Ding Ding at Moscow Zoo in Moscow, Russia. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)

Giant panda cub Katyusha looks at a birthday treat made of bamboos at Moscow Zoo in Moscow, Russia, Aug. 24, 2024. Katyusha, the first giant panda cub born in Russia, turned one year old on Saturday. (Xinhua/Bai Xueqi)