species     island  bill_length_mm  ...  body_mass_g     sex  year
0  Adelie  Torgersen            39.1  ...       3750.0    male  2007
1  Adelie  Torgersen            39.5  ...       3800.0  female  2007
2  Adelie  Torgersen            40.3  ...       3250.0  female  2007
3  Adelie  Torgersen             NaN  ...          NaN     NaN  2007
4  Adelie  Torgersen            36.7  ...       3450.0  female  2007

[5 rows x 8 columns]

(344, 8)

Index(['species', 'island', 'bill_length_mm', 'bill_depth_mm',
       'flipper_length_mm', 'body_mass_g', 'sex', 'year'],
      dtype='str')

species                  str
island                   str
bill_length_mm       float64
bill_depth_mm        float64
flipper_length_mm    float64
body_mass_g          float64
sex                      str
year                   int64
dtype: object