YG
(for my theory) The grass has been grown with some sort of chemical or other substance that modifies Miltank's physical and mental abilities.
BTW ILM how far did you look into that question?
^ That was f***ed up man...
| Here you have someone who took their time to think up an interesting question for you to answer regarding Pokemon...
| And you come up with THIS???
At the beginning of the thread you state that you'll give SCIENTIFIC answers to our Pokemon-related questions... and sincerely, there's nothing SCIENTIFIC about: "birds fly 'cause they got wings"
I'd be pissed if I was ILayM...
but i'll give you a chance:
Kecleon is based on a chameleon, and his ability to become invisible is based on a chameleon's ability to camouflage,
a chameleon, however, can NOT turn invisible, they change colors depending on their surroundings to either camouflage OR catch a opposite sexed chameleon's attention,
even so, a chameleon's ability to camouflage can be easily distinguishable because of the angle from which you look at it
(for example a brown chameleon on a tree can be found easily diagonally up because you see the brown silhouette against the greenery of the tree, but a bird who looks down at it will have a harder time)
therefore, Kecleon's ability must be to turn INVISIBLE since light isn't refracted from it (meaning it's not transparent, that would make it still visible), and it can move freely and be [not] seen from many directions at a time
Therefore,
"What gives Kecleon it's ability to become INVISIBLE???"