[AndrewC]

Is it ironic that both you and a housecat have about a 140-degree binocular overlap in your visual fields, giving the cat depth perception and stereoscopic vision as good as any human's? Cat's not your direct ancestor either...

But I am not the one who relies on similarities to establish a direct relationship.

[general_re]

But I am not the one who relies on similarities to establish a direct relationship.

"Uses", not "relies on" - other evidence is also available for consideration. Woodpeckers, fruit bats, and houseflies all have wings, but I doubt you'll find anyone positing a direct relationship between any two of them.