A swirling sea of pink, where fluffy tufts float majestically upward, while elsewhere violet plumes rain down from above.

Aside from enjoying rest and relaxation, beachgoers will also be reaping the mental-health benefits of “sea therapy.” ...

Instead, the brightest and most patterned sea slugs are more active during the day. The sun’s rays are critical in enhancing the slug’s ability to ward off predators with its flamboyant ...