millions of tons of dust and rock were thrown up into the air by the asteroid's impact. this is the ejecta cloud. in mongolia, the ejecta cloud causes the temperature to become hotter. as the air temperature reaches 120 degrees, the "troodons" run inside the cave. the temperature ticks upward every second. the "charonosaurus" go into the cave. inside the cave, it is cooler. however, the "charonosaurus" and "troodon" are forced to share the cave with each other, even though they are enemies.