When penguins are affected by oil spills or unclean fishing practises their feather get covered in poisonous gunk. When they try to remove this dirt, they swallow it and poison themselves. For this reason penguins need woollen jumpers to wear, they act as a barrier to them and prevent them from poisoning themselves.
Wool was the earliest fabric used for human swimwear so, why not for penguins too.
If you can knit please, help these little cuties out by using the link below to make a jumper for a penguin. I challenge the more talented knitters to turn these penguins into stylish fashionistas.