For centuries, researchers have puzzled over how oysters grow stunningly symmetrical, perfectly round pearls around irregularly shaped grains of sand or bits of debris. Now a team has shown that ...

HAIKOU — In the waters of a southern Chinese island, scores of palm-sized pearl oysters hang tidily on the breeding cages. These oysters, scientifically known as Pinctada maxima, are primarily found ...

Save articles for future reference. The wild harvest licence for 2023 has been set at more than 1 million shells, up from 860,000 in 2021. Add demand and nature playing ball with work to improve ...

This file photo taken on Nov 24, 2022 shows a Pinctada maxima shell and pearls at the scientific research trial breeding project in Changjiang Li autonomous county, South China's Hainan province.