w ings ▁are ▁brown ish ▁grey , ▁with ▁l ighter ▁bases . ▁ ▁References ▁ ▁Category : M oth s ▁described ▁in ▁ 2 0 1 2 ▁Category : L ith osi ina <0x0A> </s> ▁CT RL ▁or ▁C trl ▁may ▁refer ▁to ▁several ▁things : ▁▁ ▁Channel ▁T unnel ▁Rail ▁Link , ▁a ▁high - speed ▁railway ▁line ▁opened ▁in ▁the ▁ 2 0 0 0 s ▁in ▁Britain ▁ ▁Control ▁key , ▁an ▁input ▁button ▁present ▁on ▁most ▁computer ▁key boards ▁ ▁CT RL ▁( g ene ), ▁a ▁gene ▁that ▁in ▁humans ▁enc odes ▁the ▁en zym e ▁ch ym ot ry ps in - like ▁prote ase ▁CT RL - 1 ▁ ▁C trl ▁( web ▁series ), ▁an ▁American ▁comedy ▁web ▁series ▁from ▁N BC ▁ ▁C trl ▁( D erek ▁Web b ▁album ), ▁a ▁ 2 0 1 2 ▁album ▁by ▁singer - song writer ▁D erek ▁Web b ▁ ▁C trl ▁( S Z A ▁album ), ▁a ▁ 2 0 1 7 ▁album ▁by ▁singer - song writer ▁S Z A ▁ ▁Cy bero am ▁Th re at ▁Research ▁L abs , ▁a ▁facility ▁of ▁Cy bero am ▁ ▁The ▁stock ▁symbol ▁for ▁Control 4 ▁ ▁See ▁also ▁ ▁Control - Alt - Delete ▁( disambiguation ) ▁ ▁C NT RL , ▁protein ▁that ▁in ▁humans ▁is ▁encoded ▁by ▁the ▁C NT RL ▁gene ▁ ▁C NT RL : ▁Bey ond ▁ED M , ▁a ▁North ▁American ▁educational ▁initi ative , ▁centered ▁on ▁electronic