 Rwy'n gofio sut i'r newid yn ipwoghel o MUR. Fe ynahewch yn ystod o entrepreneur oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd oedd alwyrnodol yn fflaws fvar. Mae cerddurent opaith o pobl-föradol. ac mae'r gwahau o'r blaenau ymlaenwyr yn ychydigol i'w eu gwahau. Rishab yn y cofawr o'r enghraifft, topsy, yn y ffudio ffówr o'r cyflaenwyr, o'r gyflaenwyr, ac mae'n ddweud i'r lleol o'r cyflaenwyr. Mae'n gweithio'r cyflaenwyr o'r cyflaenwyr o'r cyflaenwyr ac o'r cyflaenwyr o'r cyflaenwyr, ac o'r cyflaenwyr o'r cyflaenwyr o'r cyflaenwyr, o'r cyflaenwyr o'r cyflaenwyr. Rwyf meddwl ydych chi wedi ychydig roedd ymlaenwyr gyda'r gyflaenwyr? Rwyf meddwl fyddai hwn o'r cyflaenwyr, ffaith ar hyn, i hynny nad o'r cyflaenwyr. mae'n gwaith, mae'n gweithio. Mae'n gweithio special o'r gyflaenwyr hynach. Mae hynny yn digwydd o'r bodig sy'n de Allunol, The average body temperature of an emperor penguin is the same as humans, but they live in water that is minus 2 degrees, air that is 60 degrees below zero, and wind speeds of 200 kilometers per hour. Penguins are an example of enormous amounts of innovation and innovative technology. Penguins have a heat exchange system in their capillary system, so their blood vessels, their veins and arteries are very close together so that instead of heat going out as the blood goes out from their heart, the heat that goes out is carried back by the veins coming back towards their heart. Emperor penguins have also evolved very interesting technologies and methods, so the fathers actually hatch the eggs. They stand around in freezing cold huddled together with 200 kilometer winds around them so that they can share body heat with their eggs on their feet while the mothers go around looking for food and they starve themselves for three months, very dedicated lads they are. And the reason they do this is because if the eggs touch the ground for more than a few seconds, they'll freeze. What would happen to the penguins that did not have this advanced heat exchange system with greater space between their veins and their arteries? They would freeze and die, right? What would happen to the penguins that did not keep eggs on their feet if they're in the middle of the Antarctic? They would freeze and die. So even though it makes it hard to walk, they have adapted through a process of competition which Charles Darwin recognized in 19th century England that natural selection and adaptation rely on competition for survival and for fit. You have competition among individuals within a species, you have competition between species and you have competition for traits. You can either walk fast or you can carry eggs on your feet. You can't do both at the same time. So some penguins certainly walked fast and they would presumably run away from the polar bears but their babies would all die. The emperor penguins couldn't walk but they kept their babies warm so they had new ones. So there are traits that compete as well and these compete through a process of pretty intense...