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pengwiniaid
penguins
Last Update: 2011-09-27
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nid oes pengwiniaid yn yr holl llefoeddair ychwanegol yn y esgyrn, fel mae adar arferol. mae eu hesgyrn trwm, solid yn gweithredu fel gwregys pwysau deifwyr, gan ganiatáu iddynt aros tanddwr.
penguins don't have all the extra airspaces in their bones that normal birds have. their heavy, solid bones act like a diver's weight belt, allowing them to stay underwater.
Last Update: 2016-11-29
Usage Frequency: 1
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Reference:
mae gan pengwiniaid plu dynn wedi ei bacio. mae y plu yn gwrffddwr. mae'r plu i ddarparu cynhesrwydd a gosod. mae wedi eu gorchuddio eu plu gydag olew o'r chwarren ger y gynffon i gynyddu impermeability. gosod yn hanfodol i pengwiniaid yn goroesi yn y dŵr, moroedd antarctig efallai mor oer fel 2.2 ° c (28° f) a anaml fynd uwchlaw 2° c (35.6° f).
penguins tightly packed feathers overlap to provide waterproofing and warmth. they coat their feathers with oil from a gland near the tail to increase impermeability. waterproofing is critical to penguins' survival in water, antarctic seas may be as cold as- 2.2°c (28°f) and rarely get above 2°c (35.6°f).
Last Update: 2016-11-29
Usage Frequency: 1
Quality:
Reference: