This is somewhat explained
外围体育投注"Grass can cause a baby to experience sensory overload"
外围体育投注"babies’ wariness of plants is a natural behavior meant to keep them from getting poisoned"
I once took my hamster outside while I decided to give his cage a really thorough cleaning. I took the top cage part off and put it in the grass, then stuck him in it while I cleaned the bottom. Little dude decided grass was the worse thing in the world and spent the whole time hanging off the bars rather than touch it.