#570 Zorua: Zorua sometimes transforms into a person and goes into cities to search for food. When Zorua does this, it usually takes on the form of a child.
#846 Arrokuda: After it’s eaten its fill, its movements become extremely sluggish. That’s when Cramorant swallows it up.
#780 Drampa: If a child it has made friends with is bullied, Drampa will find the bully’s house and burn it to the ground.
#1001 Wo-Chien: It drains the life-force from vegetation, causing nearby forests to instantly wither and fields to turn barren.
#44 Gloom: From its mouth Gloom drips honey that smells absolutely horrible. Apparently, it loves the horrid stench. It sniffs the noxious fumes and then drools even more of its honey.
#662 Fletchinder: Fletchinder are exceedingly territorial and aggressive. These Pokémon fight among themselves over feeding grounds.
#186 Politoed: They gather on moonlit nights to form a large chorus. Their cries sound angry and not at all pleasant, but they are certainly distinctive.
#918 Spidops: Spidops covers its territory in tough, sticky threads to set up traps for intruders.
#408 Cranidos: Its hard skull is its distinguishing feature. It snapped trees by headbutting them, and then it fed on their ripe berries.
#1008 Miraidon: This seems to be the Iron Serpent mentioned in an old book. The Iron Serpent is said to have turned the land to ash with its lightning.