Where all other penguin species lay two eggs, the emperor penguin female lays only one, measuring 11.1 to 12.7 cm long and weighing 345 to 515g - that’s about the weight of 13 Cadbury’s Crème Eggs!

For four years, keepers at Birdland Park and Gardens waited patiently for Maggie, their prized female king penguin, to lay an egg. She kept flirting with the male penguins. There was even mating ...

For four years, keepers at Birdland Park and Gardens waited patiently for Maggie, their prized female king penguin, to lay an egg. She kept flirting with the male penguins. There was even mating, ...

Birds lay eggs of surprising variety, and scientists have long wondered why. Could it be that certain shapes protect eggs from shattering? Or perhaps allow them to fit snugly in a nest? Or was ...

The Denver Zoo Conservation Alliance is working to protect the critically endangered African Penguin with a highly controlled ...

Keepers sent feathers of Maggie, now known as Magnus, for DNA testing to discover its true sex A female king penguin ... and Birdland has had females lay eggs until their mid-thirties.