Penguins waddle on artificial snow at Taoranting Park in Beijing on Dec 31, 2011. Six penguins, including several emperor penguins and gentoo penguins, are being shown during an ice and snow carnival from Dec 31 to middle February in Taoranting Park. The penguins came from Dalian Polar Aquariums Park in Dalian, Northeast China's Liaoning province. The Emperor Penguin is the tallest and heaviest of all living penguin species and is endemic to Antarctica. [Photo/CFP]

Two emperor penguins play on artificial snow at Taoranting Park on Dec 31, 2011. [Photo/CFP]

A tourist touches the plumage of an emperor penguin at Taoranting Park on Dec 31, 2011. [Photo/CFP]

Two gentoo penguins at Taoranting Park on Dec 31, 2011. [Photo/CFP]

Penguins waddle on artificial snow at Taoranting Park in Beijing on Dec 31, 2011. Six penguins, including several emperor penguins and gentoo penguins, are being shown during an ice and snow carnival from Dec 31 to middle February in Taoranting Park. The penguins came from Dalian Polar Aquariums Park in Dalian, Northeast China's Liaoning province. The Emperor Penguin is the tallest and heaviest of all living penguin species and is endemic to Antarctica.