Question

Why do legendaries lay eggs:

1. without other pokemon
2. being LEGENDS!

Answer 1

None of the Legendary's lay eggs except Manaphy.

1. In the Anime Manaphy doesn't breed with any Pokemon, I dont know why.

2.Well, Manaphy is a Legend and an Evolution of Phione, Game freak made it that way.

Hope this helps! XD

Comments

in the anime lugia lays an egg

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he/she doesn't lay an egg he/she just has a child. Assuming that the only way legendary pokemon could reproduce is by egg, that would mean that this answer is wrong but we have no proof.