A strange event will occur. Penguins will be spotted in Darwin, terrorising local crocodiles and confirming a strange exodus of antarctic animals.
A few days later a massive meteorite will crash into Antarctica. There will be snow in Kenya, ice-skating on the Amazon river, and the whole southern hemisphere will be plunged into freezing darkness.
Of the humans that survive there will be plenty of food, but plenty of penguins. Penguins will become the dominant species, growing in size, aggression and appetite.
No one will survive the Penguin Apocalypse.