Alright, you win. Where I live -20°C is pretty much the absolute limit, and double-digit negatives are very rare.You still lucky that yours winters don't have an polar vortex effect (like here), last days the temperatures rarely goes above -20°C, with some spikes at -40°C, and near -50°C (Canadian winters are harsh, you knows).
It is one of 6 that are on my list but I have not started them. I am currently trying to figure out why the Cannibal missions are not showing up.

When I said it destroyed all the other animals I meant that all the other animals disappeared from the game ie they no longer showed up in the pedia!

