The smaller_petals variable name here:
# True for each row with body_mass_g greater than the min value of 285g
smaller_petals = df["body_mass_g"] > df["body_mass_g"].min()
# Lowest penguin weight out of all rows with weights above 285g
df.loc[smaller_petals, "body_mass_g"].min()
is a leftover from when this notebook was using the Iris dataset. It should be renamed to something penguin related, e.g. heavier_penguins