array =>
(
[dogs] => array
(
[breeds] => array
(
[0] => 'german shepard',
[1] => 'golden retriever',
[2] => 'poodle',
)
)
[cats] => array
(
[breeds] => array
(
[0] => 'siamese',
[1] => 'tabby'
)
)
)

i want to operate only on dog breeds but without using any keys