animal,groups,mean,std
a,low,54.25,4.272001872658765
a,high,174.0,6.557438524302
b,low,50.25,8.539125638299666
b,high,175.0,10.583005244258363
d,low,64.5,3.785938897200183
d,high,198.33333333333334,9.07377172587747
