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the dark coloured feathers of a penguin's back surface absorb heat from the sun, so helping them to warm up too.
mae plu lliw tywyll o arwyneb cefn pengwin yn amsugno gwres o'r haul, a'u helpu felly i gynhesu.
Last Update: 2016-11-29
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penguins
pengwiniaid
Last Update: 2011-09-27
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