The Crunch No. 125: Perseverance
Plus, the most liked TikTok of 2020, cryogenic ferrets, crazy new science, and good news on refugees in Colombia, a reprieve for the ozone layer, plummeting population growth in China, and a new national park in the United States.
![The Crunch No. 125: Perseverance](/content/images/size/w100/2021/02/050d75ca-7230-11eb-9608-02d1dbdc35d1.jpg)