bill_depth_mm bill_length_mm body_mass_g flipper_length_mm island sex year
count 31.0 31.0 31.0 31.0 31 31 31
unique 24.0 28.0 26.0 17.0 1 2 3
top 18.5 39.5 3300.0 185.0 Dream female 2009
freq 4.0 2.0 2.0 4.0 31 19 11