To persuade anti-federalists
Nasa is realising a new idea that Will help humanity build a better state of wafare but this May lead to a down fall on pigs production because it will effect the food chain it will kill of all the McDonald's chain and it may become a major change in history so become the next time you to out of house and wear a t-shirt because children might be around.
A few would be maybe a change in mating? Like if the animal isn't leaving it's habitat to go and get nutrition and mate then something might be off with the animal, or the seasons are messing them up due to weather.
Another would be possibly be animals who usually don't go into competition, going into it with animals that are usually in a good zone, most likely due to food dropping or habitat population increase.
And then there's invasive species, they come in and kill off animal species causing a whole environmental habitat of animals to die off, eat their food and take in all the nutrients, and then possibly animals having to go off and find a new habitat causing them to become invasive species.