Ana Beatriz Barros

It's a brawl of the Brazilian models! Ana Beatriz Barros (31) strolled on the beach in Greece with a sexy striped bikini and wild sunglasses yesterday (left) -- while Alessandra Ambrosio (32) wore an even stripier bikini and even wilder sunglasses along side her (right). The question is...

Alessandra Ambrosio's bikini-clad stroll down a Greek beach was more than just awesome -- it also revealed why those Victoria's Secret Angels always look so smoking hot. And yes, the answer is pretty obvious -- we're not rocket scientists.