What's the Kennection? #203

In football, what term is used for an offensive player, one of four or fewer, who lines up behind the line of scrimmage?

In the geometry theorems ASA and SSS, used to prove triangles are congruent, what does the letter 'S' stand for?

According to some Greek myths, an Amazon warrior would improve her military prowess by cutting off what body part?

A 2009 study of infants from New Guinea found that they do just fine developmentally despite never learning to do what?

What kind of animal was seen "in the sky" during the opening theme song of TV's 'Reading Rainbow'?

What's the "Kennection"?