Photo of the Day: Mother’s Little Helpers

124 Photo of the Day: Mothers Little Helpers

Two female North American River Otters at the Seneca Park Zoo in Rochester, New York – trained by zookeeper Catina Wright – take empty bottles and place them into recycling bins. (Democrat & Chronicle, Annette Lein/AP)

Photo of the Day: Flying Tree

113 Photo of the Day: Flying Tree

A cut-down tree hovers over houses as it is transported away by a helicopter in Hannoversch Muenden, central Germany. (UWE ZUCCHI/AFP/Getty Images)

Photo of the Day: Nice to Meet You

13 Photo of the Day: Nice to Meet You

Photographer Dan Dinu had a close encounter with a curious fox that was definitely ready for its close-up. Luckily his pal Cristian Goga was able to snap the moment. Dan was making his way to St Ana Lake in central Romania when he encountered the male fox. Dan says: The behaviour is due to the fact that it has been raised by a forest ranger, therefore it was used to people. Yet, it is not right to encourage such a behaviour, as animals must remain wild. It cannot be sure that next time, instead of looking at a camera, it will not look into a rifle. (Dan Dinu/Cristian Goga/Rex Features)

Photo of the Day: Assimilation

11 Photo of the Day: Assimilation

A telephone pole near Upington in South Africa is covered by nests made of twigs and grass by sociable weaver birds. Photographer Dillon Marsh’s ‘Assimilation’ project shows how the birds make good use of the manmade poles in a landscape with few real trees. We will have a gallery of his photos on the Telegraph site later today. (Dillon Marsh/Rex Features)

Photo of the Day: Robo Chief

1125 Photo of the Day: Robo Chief

A robot waiter brings dishes of food to customers at a robot restaurant in Harbin, Heilongjiang Province, China. (WANG JIANWEI/CHINE NOUVELLE/SIPA)

Photo of the Day: Walk this Way!

1116 Photo of the Day: Walk this Way!

Children react as a carnivorous theropod known as the Australovenator dinosaur walks through crowds along the Southbank in London. (Kirsty Wigglesworth/AP)

Photo of the Day: The Biggest Wave

1104 Photo of the Day: The Biggest Wave

Australian surfer Marti Paradisis rides a wave near Pedra Branca Rock, south of Tasmania in the Southern Ocean. Paradisis won the ‘Biggest Wave’ section of the Australasian Big Wave Awards, which included $20,000 prize-money. Picture taken November 2012. (REUTERS/Andrew Chisholm/Big Wave Awards)

Photo of the Day: Winter Day

190 Photo of the Day: Winter Day

People shield themselves from the snow as they walk along the Charles Bridge in Prague, Czech Republic. (Vit Simanek/Associated Press)

Photo of the Day: The Emperor Penguins

188 Photo of the Day: The Emperor Penguins

Paul Nicklen of Canada won 1st Prize in the Nature Stories category for his photographs of Emperor Penguins. Scientists discover that Emperor Penguins are capable of tripling their swimming speed by releasing millions of bubbles from their feathers. These bubbles reduce the friction between their feathers and the icy seawater, allowing them to accelerate in the water. (Paul Nicklen/ National Geographic Magazine)

Photo of the Day: Cat Hole

130 Photo of the Day: Cat Hole

A stray cat looks through a hole in an iron panel covering a basement window in Minsk. Municipal authorities in Belarus have walled up stray cats in basements in compliance with Soviet-era regulations, dooming them to death of hunger. But some residents make holes for cats to escape. (Sergei Grits/Associated Press)

Photo of the Day: An Elephant Meets a Sea Lion

125 Photo of the Day: An Elephant Meets a Sea Lion

In this heartwarming photo we see Chendra, an Asian elephant, meeting Gus, a sea lion at the Oregon Zoo. Chendra met Gus while she was on one of her morning walks around the zoo. Photograph by Michael Durham. Posting by laphmore on Reddit.

Photo of the Day: The Element

19 Photo of the Day: The Element

Large swell forms after severe storm in Sydney (Cameron Spencer / Getty Images News)

Photo of the Day: Winter in Kraków

1138 Photo of the Day: Winter in Kraków

Photography by Marcin Ryczek.

Photo of the Day: Devil Ride

1134 Photo of the Day: Devil Ride

Hawaiian surfer Garrett McNamara set the world record for biggest wave ever ridden back in November 2011, when he tamed a 78-foot monster. McNamara reportedly broke his own record by riding this 100-foot wave on Monday in Nazaré, Portugal.

Photo of the Day: Huddle Up

1102 Photo of the Day: Huddle Up

Two chimpanzees hug each other to keep warm at Qingdao Zoo in Qingdao, Shandong province, Eastern China. (Barcroft)