Am Nachmittag schlafen Pinguine besonders fest, fand Gerard Dewasmes von der University of Picardy in der Antarktis heraus. Zu unterschiedlichen Tageszeiten tippte er schlafenden Pinguinen einmal in der Minute auf die Schulter. Am Morgen erwachten die Tiere nach fünf Minuten, am Nachmittag dagegen tippte Dewasmes seinen Pinguinen etwa neunmal auf die Schulter, bis diese aufwachten.
abendblatt.de/ratgeber/wissen/article864549/Pinguin-schlaeft-nachmittags.html
abendblatt.de/ratgeber/wissen/article864549/Pinguin-schlaeft-nachmittags.html
It is perfectly normal for gentoos and macaronis to rest or sleep on their bellies. They also sleep while standing, sometimes with their beak tucked under their wing which helps regulate heat loss. Another interesting way I have seen them sleep is when they roll onto the back part of their foot bringing their toes off the ground. This helps regulate heat loss by keeping their toes off an icy or cold surface. Late in the afternoon after their last feeding of the day they tend to start preening. With full bellies, they go into a restful mode.
tennesseeaquarium.blogspot.com/2007/06/do-penguins-sleep.html
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