Last Updated: Tuesday, March 25, 2014, 16:37
Researchers from Ohio-based University of Akron have discovered leptin in the mallard duck, peregrine falcon and zebra finch, marking the first time the hormone has been found in birds.
Last Updated: Sunday, February 10, 2013, 14:52
A huge 9,000-strong colony of emperor penguins has been discovered in Antarctica after scientists spotted their poo trails in satellite images.
Last Updated: Wednesday, June 22, 2011, 09:42
Emperor penguin, the largest species of the distinctive waddling creatures can grow up to 1.15 metres tall.
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