A critical life stage is colliding with shrinking sea ice Emperor penguins undergo a single annual molt in which adults replace their entire feather coat over roughly four weeks. That molt forces them to remain on stable sea ice because they cannot swim effec…
Emperor penguins undergo a single annual molt in which adults replace their entire feather coat over roughly four weeks. That molt forces them to remain on stable sea ice because they cannot swim eff… [+1504 chars]
