2.2 Animals
Considering that the potentially gender-specific CPL-reflection ability
of mantis shrimps, the present study only focused on male O.
oratoria . A total of 150 male O. oratoria s (average weight:
26.45 ± 3.11g; average length: 125.39 ± 6.15 mm) were collected in May
to June 2022 from Yantai Yangma Island, China. The collected O.
oratoria s were transported back to the laboratory using an incubator
filled with seawater. All O. oratoria s underwent 30 days of
temporary rearing in natural seawater and then were used for
morphological characterization and subsequent light exposure
experiments.