April 27, 2009 | By Allison Cerra PLANO, Texas Dr Pepper Snapple Group has expanded its Venom Energy portfolio with the addition of fruit punch and mango flavors called Death Adder and Killer Taipan, respectively.Death Adder and Killer Taipan are the latest additions to the Venom Energy product line, which originally launched in June 2008 with two flavors: Black Mamba (regular) and Mojave Rattler