Salmon upstream lay eggs, cranes slowly eat in the fields, white tail urchins tumbled in the air, . are the most beautiful natural images in the past week.

Beautiful photos: Salmon upstream lay eggs images 1
Autumn morning in Waveney Valley, Suffolk, England.

Beautiful photos: Salmon upstream lay eggs images 2
Two swans seek food under the Spree river in Berlin, Germany.

Beautiful photos: Salmon upstream lay eggs images 3
Salmon are upstream to lay eggs in Selkirk, Scotland

Beautiful photos: Salmon upstream lay eggs images 4
A red squirrel eating seeds in the Kielder forest, Northumberland, England.

Beautiful photos: Salmon upstream lay eggs images 5
A pair of rare white-headed cranes leisurely eat on a field in Cheorwon, South Korea.

Beautiful photos: Salmon upstream lay eggs images 6
A 22-month-old tiger chasing a dry leaf
on the water in Bandhavgarh National Park, India.

Beautiful photos: Salmon upstream lay eggs images 7
The number of bat species in the UK in 2011 increased by 9% compared to 2010.

Beautiful photos: Salmon upstream lay eggs images 8
Photo of a deep-sea shrimp by Solvin Zankl
1st prize in the GDT Wildlife Photography Competition 2011.

Beautiful photos: Salmon upstream lay eggs images 9
A white-tailed osprey performs acrobatically in the skies of Skye, Scotland.

Beautiful photos: Salmon upstream lay eggs images 10
Close up of a tree frog in the Wildlife Park in Sydney, Australia.

Beautiful photos: Salmon upstream lay eggs images 11
The mother and hippopotamus swim underwater in Berlin Zoo, Germany.

Beautiful photos: Salmon upstream lay eggs images 12
Vulture birds eat dead animal dead in the National Park
Cevennes, near Saint Pierre des Tripiers, France.

Beautiful photos: Salmon upstream lay eggs images 13
Birds fly over snow-covered corn fields in State College, Pennsylvania, USA.

Beautiful photos: Salmon upstream lay eggs images 14
A couple walks under the canopy of yellow leaf trees in Lausanne, Switzerland.

Beautiful photos: Salmon upstream lay eggs images 15
A small seal fitted with a satellite tracking device is released back to nature in Norfolk, USA .