Why I can't fetch life_span on DogApi?

I tried to fetch all schema from dogApi, search by breed. The only items that are fetched are name and temperament.
All items are on the same level and I don’t get it why is not working. Please help. Thanks!

These are my results:
name: [Optional(“English Cocker Spaniel”)]

breed_for: [nil]

breed_group: [nil]

life_span: [nil]

temperament: [Optional(“Trainable, Friendly, Affectionate, Playful, Quiet, Faithful”)]

Maybe I need to be Paid to have access to the rest of the information?

Solved. My code was broken.