So with 2 more weeks to sign off my 7th grade year my science teacher is having us write a 3 page story on something we have learned. Most people are doing volcanoes, earthquakes or some natural disaster with ending the world. My story is about the Milankovitch's theory on the earth's orbit and rotation. The earth's orbit and rotation chages sending us back into a ice age. What I want to captured most in this story is the effects on animals, vegetation, and the geography. I can already figure out what the vegetation and geography will be like. What I need help most is the animals. How would they act and adopt to a ice age? I want to focus on livestock. Animals like cows, chickens, goats, and pigs.