Pandas Help
Group by a category, count the totals, and sort descending
df.groupby('col1', as_index = False).size().sort_values(ascending=False)
lemurs.groupby('taxon', as_index = False).size().sort_values(by='size',ascending=False)
df.groupby('col1', as_index = False).size().sort_values(ascending=False)
lemurs.groupby('taxon', as_index = False).size().sort_values(by='size',ascending=False)