Set inheritance back to 90 and do the same thing: reset the simulation and run it for 500 ticks changing the temperature every 100 ticks.
What happens to furriness?
If you're not sure, try again, but running the simulation for 1000 ticks and changing the temperature every 200 ticks.
O At first it evolves, but then it gets stuck and stays the same.
O Nothing, it stays the same.
O It evolves, tracking the temperature with a bit of lag.
O It decreases.