When most birds moult they are at risk of getting chilly, but not gentoo penguins. During their moult they growing a double layer, keeping the original feathers before shedding them, potentially causing them to overheat when its hot

#penguins #science #biology #zoology #Antarctica #climatechange

https://journals.biologists.com/jeb/article/227/11/jeb248062/352633

Read the full research at https://journals.biologists.com/jeb/article/227/11/jeb247332/352637