>>35938806Here's what Lucian says regarding Poke Balls in Gen 4:
>I was just reading a collection of observations on Pokémon in the wild. One article addresses the question why Pokémon would go into a Poké Ball. According to this article, this behavior is based on instinct. A weakened Pokémon will curl up tight in an effort to heal itself. The Poké Ball was invented to take advantage of that protective instinct.Poke Balls are designed to take advantage of Pokemon's natural instincts and discourage them from wanting to escape.