Tourists observe a western lowland gorilla at the Mefou Primate Sanctuary in Yaounde, the capital of Cameroon, on July 1, 2025. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

This photo taken on July 1, 2025 shows a western lowland gorilla at the Mofu Primate Sanctuary in Yaounde, the capital of Cameroon. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

This photo taken on July 1, 2025 shows western lowland gorillas at the Mofu Primate Sanctuary in Yaounde, the capital of Cameroon. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

This photo taken on July 1, 2025 shows chimpanzees at the Mofu Primate Sanctuary in Yaounde, the capital of Cameroon. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

A staff member feeds western lowland gorillas at the Mefou Primate Sanctuary in Yaounde, the capital of Cameroon, on July 1, 2025. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

A staff member delivers food for western lowland gorillas at the Mefou Primate Sanctuary in Yaounde, the capital of Cameroon, on July 1, 2025. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)

Tourists observe a western lowland gorilla at the Mefou Primate Sanctuary in Yaounde, the capital of Cameroon, on July 1, 2025. Located in the south of Yaounde, the Mofu Primate Sanctuary aims to protect primates that have been maimed or left alone due to illegal hunting and trading. (Xinhua/Wang Guansen)