Fig. 3

Repartition of number (gray bars) and percentage of naps (black line) over the time of the day. For each hour, the cumulative number of naps over the three days of race is presented. The percentage was calculated based on the total number of naps per race (total number of naps declared for both races:2,340; DDF:2,077; and TDB:263). The vertical red line represents the time of sunset on October 18, 2019, on Reunion Island (6:41 PM)