Lions walk in the Ngorongoro Crater in Ngorongoro Conservation Area, west of Arusha, northern Tanzania, Monday, Jan. 19, 2015.

Lions walk in the Ngorongoro Crater in Ngorongoro Conservation Area, west of Arusha, northern Tanzania, Monday, Jan. 19, 2015.

The lions were found dead inside the Ngorongoro Conservation Area, a popular wildlife reserve in Tanzania. Deaths raise concerns over wildlife poisonings in East Africa.

(Image credit: Mosa’ab Elshamy)