Here's why:
* Pokémon don't appear in the wild based on what you've seen on TV or other media. Their appearance is determined by game mechanics, location, and sometimes specific events.
* The Pokédex is your in-game record of the Pokémon you've encountered. It's not just a visual encyclopedia; it's a crucial part of the game's data.
How to catch Latias:
1. Check your Pokédex: If Latias isn't listed, you haven't encountered it yet.
2. Determine the right game: Latias is available in specific games, like Pokémon Ruby, Sapphire, and Omega Ruby/Alpha Sapphire.
3. Research its location: Latias is a rare Pokémon, so you'll need to find its specific location and the proper conditions to encounter it. Online guides and walkthroughs can help.
4. Get prepared: Make sure your Pokémon are strong enough to battle and catch Latias.
5. Head to its location: Use your game's map and guides to find Latias and try to catch it.
Remember: Latias can be elusive, so don't be discouraged if it takes some time and effort. Good luck!