Data description for data files associated with Gangloff et al. 2021, " Behavioral metrics and hierarchical movement modeling reveal patterns of within- and among variation at different time scales in neonate garter snakes (Thamnophis elegans)" "Gangloffetal2021_BehaviorData.csv" Provides repeated-measures data on neonate garter snakes (Thamnophis elegans) SnakeID: Identification number of each snake Litter: Identification number for each litter Population: Name for maternal population of origin Sex: Male (M) or Female (F) Treatment: Experimental treatment group (1 = No cue / No attack; 2 = No cue / Yes attack; 3 = Yes cue / No Attack; 4 = Yes cue / Yes attack) TrialType: Type of trial (T = Training; A = Assessment) Trial: Trial number for that individual DaysOld: Age of snake (in days) at time of trial SVL: Snout-vent length (mm) Mass: Mass (g) BodyTemp: Body temperature of snake immediately after trial (degrees C) Seg1_TFRate: Tongue-flick rate during first segment of open-field test (flicks per second) Seg2_TFRate: Tongue-flick rate during second segment of open-field test (flicks per second) Seg1_AvgVelocity: Average speed of snake during first segment of open-field test (cm per s) Seg2_AvgVelocity: Average speed of snake during second segment of open-field test (cm per s) EscLatency: Time to emerge from hide (s); Censored at 180 s Area_Unique: Unique area of test arena explored after emergency from hide (cm^2) "Gangloffetal2021_MovementData.csv" Provides movement data in open field test for repeated trials on neonate garter snakes (Thamnophis elegans) SnakeID: Identification number of each snake Litter: Identification number for each litter Population: Name for maternal population of origin Sex: Male (M) or Female (F) Treatment: Experimental treatment group (1 = No cue / No attack; 2 = No cue / Yes attack; 3 = Yes cue / No Attack; 4 = Yes cue / Yes attack) TrialType: Type of trial (T = Training; A = Assessment) Trial: Trial number for that individual DaysOld: Age of snake (in days) at time of trial SVL: Snout-vent length (mm) BodyTemp: Body temperature of snake immediately after trial (degrees C) TrialSegment: Segment of open-field test RecordingTime: Time of position observation (s since beginning of recording) X: Position relative to center of frame in horizonal axis (cm) Y: Position relative to center of frame in vertical axis (cm)