1The scuba divers were thrilled to encounter a shoal of angelfish in the crystal-clear waters of the Caribbean reef.
2As the concert venue filled with an increasingly rowdy shoal of fans, the security team struggled to maintain order.
3The documentary explored the complex social dynamics within a shoal of sardines, revealing surprising levels of cooperation and communication.
4Avoid using the term 'shoal' loosely; in marine biology, it specifically refers to a group of fish that exhibits coordinated movement and social interaction.
5There is something mesmerizing about watching a shoal of starlings take flight, their individual movements somehow coalescing into a unified, fluid dance.