A boy wears a dinosaur hat as he drives a toy jeep at Jurassic Quest in Houston, Texas, the United States, Aug. 3, 2019. The three-day exhibition Jurassic Quest, a realistic dinosaur event in America, kicked off here on Aug. 2 and displayed over 80 life-size dinosaur models. (Photo by Yi-Chin Lee/Xinhua)

A girl rides a dinosaur model at Jurassic Quest in Houston, Texas, the United States, Aug. 3, 2019. The three-day exhibition Jurassic Quest, a realistic dinosaur event in America, kicked off here on Aug. 2 and displayed over 80 life-size dinosaur models. (Photo by Yi-Chin Lee/Xinhua)

People visit the Jurassic Quest in Houston, Texas, the United States, Aug. 3, 2019. The three-day exhibition Jurassic Quest, a realistic dinosaur event in America, kicked off here on Aug. 2 and displayed over 80 life-size dinosaur models. (Photo by Yi-Chin Lee/Xinhua)

Aerial photo taken on Aug. 3, 2019 shows the Banggong Co in Ngari Prefecture, southwest China's Tibet Autonomous Region. (Photo: Xinhua)

People visit the Jurassic Quest in Houston, Texas, the United States, Aug. 3, 2019. The three-day exhibition Jurassic Quest, a realistic dinosaur event in America, kicked off here on Aug. 2 and displayed over 80 life-size dinosaur models. (Photo by Yi-Chin Lee/Xinhua)