Plains
Traits
Fast Movement Plains creatures are often fast on the ground. Predators are good at charging or pouncing, while prey are accomplished at escape tactics. Increase the creature’s land speed by 10 feet. |
Senses Low-light vision, darkvision, and tracking (scent) are useful senses on the plains, and you can add one of these to the creature without it counting against that creature’s number of special abilities. |
Skills Choose two: Acrobatics, Athletics, Perception, or Stealth. A plains creature can have coloration that grants it a +4 to +8 bonus to Stealth checks in its native environment (and similar conditions) without it counting against the creature’s number of special abilities. |
Flat land makes for creatures with good vision who are used to free movement.
Source
Alien Archive 2 pg. 140