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Three-day actogram of individuals #238 and #221 inside arenas in the field. Orange marks: time on surface during daylight hours. Black marks: gross motor activity measured with accelerometers. Red marks: aboveground episodes with low body movement. Bar above actograms: natural photoperiod at which each recording started (white: day; grey: night). Measurements were made on August 2016 (#221) and June 2017 (#238).
