There are duplicate rows in the dataset when looking at the flower measurements and species (ignoring the unique Id column). There are two sets of identical specimens, and aside from these 5 rows (which represent 2 unique sets of measurements), the rest of the dataset consists of unique records. The first set of measurements are Sepal Length: 4.9cm, Sepal Width: 3.1cm, Petal Length: 1.5cm, Petal Width: 0.1cm, while the second set of measurements are Sepal Length: 5.8cm, Sepal Width: 2.7cm, Petal Length: 5.1cm, Petal Width: 1.9cm.