Last Week In Science. IFLS

ORIGINAL: Elise Andrew

Teeth: http://bit.ly/13RjIRT

Higgs Boson: http://nyti.ms/XLnJUR

HIV: http://bit.ly/ZTdyvg

Mars: http://bit.ly/YbObXe

Extinct frog: http://bit.ly/13Xi8y2

Liver: http://bit.ly/1008qaW