Contacts:
PI Daniel I Goldman (daniel.goldman@physics.gatech.edu)
Perrin E Schiebel (perrin.schiebel@gatech.edu)


All data handling was initially done in MATLAB using .mat files. 
We have also included data sets as .csv to ensure accessibility.




***Granular drag data***
Each .mat file contains force averages at the depth indicated in the file name. 
The vector angles enumerates the intruder angle (between plate face tangent and velocity vector)
Data collected in 2015 at Georgia Tech, Atlanta, GA, USA.
Setup and procedure described in manuscript.

***Non sand-specialist midline coordiates***
Each .csv file contains a 400xNt matrix.
Nt is the number of frames collected in that trial.
Rows 1-100 are the original (those returned by the MATLAB image processing tracking program)
 x coordinates of the snake midline (at each time point).
Rows 101-200 are the original y coordinates.
Rows 202-300 are the x coordinates with smoothing applied, these were used to calculate the 
shape and performance metrics.
Rows 301-400 are the y coordinates with smoothing applied.
Data collected in 2015 at Zoo Atlanta, Atlanta, GA, USA. 
Setup and procedure described in manuscript.