What is the primary activity period for wrasses, and how do they secure themselves during the inactive period?
Answer
Diurnal; they bury themselves in the sand substrate or hide in crevices
Wrasses are overwhelmingly diurnal creatures, meaning their periods of high activity, feeding, and interaction occur throughout the daylight hours. Once darkness falls, they cease activity and enter a sleep state to maximize safety from nocturnal predators. To achieve this security, they employ specific sheltering behaviors. These behaviors commonly involve burying themselves completely beneath the sand substrate that covers the ocean floor, or retreating deep into the protective confines of rock crevices found within the reef structure.
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