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10 Best pictures of the week: April 3, 2015

Faith Lennox, 7, left, shows her mother Nicole her newly 3-D printed hand at the Build it Workspace in Los Alamitos, Calif., on Tuesday, March 31, 2015.  Build It Workspace is a 3-D printer studio that teaches people to use high-tech printers and provides access to them for projects.  Faith's new hand is the result of an emerging technology that is revolutionizing prosthetics, said Build It's Mark Lengsfeld, especially for children like Faith, who quickly outgrow expensive prosthetic limbs and have trouble even using them because of their size and weight.

Los Alamitos, California

Seven-year-old Faith Lennox shows her mother Nicole her new 3D-printed hand at Build it Workspace's Spring Innovation Camp on March 31.
A Pakistani devotee carries light lamp as he stand in front of fire at the shrine of Sufi saint Hazrat Shah Hussain, popularly known as Madhu Lal Hussain, in Lahore on March 28, 2015. The annual festival was held at Madhu Lal's shrine on his 426th birth anniversary.

Lahore, Pakistan

A Pakistani devotee carries light lamp as he stand in front of fire at the shrine of Sufi saint Hazrat Shah Hussain, popularly known as Madhu Lal Hussain, on March 28, 2015.
South Korean Marine amphibious assault vehicles fire smoke shells to land on the seashore during a joint landing operation by US and South Korean Marines in the southeastern port of Pohang on March 30, 2015. The drill is part of the annual joint exercise Foal Eagle to enhance the combat readiness of the US and South Korea supporting forces in defense of the Korean Peninsula.

Pohang, South Korea

South Korean marine amphibious assault vehicles fire smoke shells to land on the seashore during a joint landing operation by US and South Korean Marines on March 30
LONDON, ENGLAND - MARCH 31:  A plain Tiger butterfly sits on the nose of a girl during a photocall to highlight the forthcoming 'Sensational Butterflies' exhibition at the Natural History Museum on March 31, 2015 in London, England. The exhibition will run from 2nd April to 13th September and features hundreds of tropical butterflies from around the world.

London, England

A plain tiger butterfly sits on the nose of a girl during a photo call on March 31 to highlight the forthcoming Sensational Butterflies exhibition at Natural History Museum.