Questions for “One hummingbird survives cold nights by nearly freezing stiff”
![black metaltail hummingbird](https://www.snexplores.org/wp-content/uploads/2020/09/090820_jl_coldest-bird_feat-1028x579.jpg)
This bird, a black metaltail hummingbird, really knows how to chill out. To save energy at night, it can drop its body temperature to 3° Celsius (37° Fahrenheit).
Glenn Bartley/All Canada Photos/Alamy Stock Photo