Nigerian President Goodluck Jonathan speaks during the inauguration ceremony of the 750 megawatt power station in the southwestern Ogun state, Nigeria, last month. In an interview with the BBC Friday, he said he hopes to retake all territory seized by Boko Haram within a month. Jiang Xintong/Xinhua/Landov hide caption

itoggle caption Jiang Xintong/Xinhua/Landov

The most recent propaganda videos from Boko Haram have higher production values than in the past and other similarities to ISIS-produced videos. Boko Haram/Sendvid hide caption

itoggle caption Boko Haram/Sendvid

Rabia Salihu Sai'id, Mojisola Usikalu, Nashwa Eassa, Mojisola Oluwayemisi and Dang Thi Oanh won the Elsevier Foundation Awards for Early Career Women Scientists in the Developing World Alison Bert/Elsevier Connect hide caption

itoggle caption Alison Bert/Elsevier Connect

An armored vehicle used by Boko Haram militants captured by the Nigerian military in Maiduguri, Borno state, late last month. The extremist group appears to be expanding its operations into neighboring countries in an effort to establish an independent Islamic state. EPA/Landov hide caption

itoggle caption EPA/Landov

In this 2012 photograph, Adamu Ali carries his 4-year-old son, Omar, who was stricken with polio earlier that year. They live in the Nigerian village of Minjibir. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

An official stands in front of relief materials at a camp for displaced people in Maiduguri in Borno State last week. The town, where many have gathered after fleeing Boko Haram attacks, is now said to be under assault from the Islamist extremist group. Reuters/Landov hide caption

itoggle caption Reuters/Landov

A group of Nigerian traditional hunters and vigilantes gather on vehicles on their way to engage Boko Haram militants in Mubi from Yola, Adamawa State, in November. The hunters have being assisting the Nigerian military in their fight against the Islamic insurgents. STR/EPA/Landov hide caption

itoggle caption STR/EPA/Landov

Maureen B. Kabrik, a "#Bring Back Our Girls" campaigner, speaks during a sit-out meeting in Borno in support of the release of more than 200 Nigerian schoolgirls in August. Boko Haram militants, who seized the girls last April, have reportedly captured a key military base in the region. Afolabi Sotunde/Reuters/Landov hide caption

itoggle caption Afolabi Sotunde/Reuters/Landov

Dr. Ameyo Adadevoh and her only child, Bankole Cardoso. Even after she was diagnosed with Ebola, her son says, "Her morale was not low. She is such a fighter." Courtesy of Bankole Cardoso hide caption

itoggle caption Courtesy of Bankole Cardoso

Adebisi Alimi, an actor-turned-activist, was the first person ever to come out as gay on Nigerian television. He now shares his story when he speaks up for the rights of the LGBT community. Claire Eggers/NPR hide caption

itoggle caption Claire Eggers/NPR

Members of the Abuja "Bring Back Our Girls" protest group sit during a march in continuation of the Global October movement. Once again, Boko Haram militants are implicated in killings and mass kidnapping in northeastern Nigeria. Afolabi Sotunde/Reuters/Landov hide caption

itoggle caption Afolabi Sotunde/Reuters/Landov

A sculpture of oil workers in Caracas, Venezuela. The country is heavily dependent on oil exports, and falling oil prices have had a ripple effect on the country's already troubled economy. Ariana Cubillos/AP hide caption

itoggle caption Ariana Cubillos/AP

Civilians who had just recently arrived in Yola prepare to flee again, this time in a large open-top truck headed to the city of Jos. Ofeibea Quist-Arcton/NPR hide caption

itoggle caption Ofeibea Quist-Arcton/NPR

#BringBackOurGirls" campaigners participate in a lamentation parade in Abuja, in early November, as more towns in Nigeria come under attack from Boko Haram. Afolabi Sotunde/Reuters/Landov hide caption

itoggle caption Afolabi Sotunde/Reuters/Landov

Ramatu Usman, shown here with one of her sons, is a 37-year-old mother of eight. She says she was separated from one of her sons, 6-year-old Yahaya Buba, following an attack. He is still missing. Ofeibea Quist-Arcton/NPR hide caption

itoggle caption Ofeibea Quist-Arcton/NPR

People inspect the site of a suicide bomb explosion at the Government Science Technical College in Potiskum, Nigeria, Monday. Survivors say a bomber disguised in a school uniform detonated explosives during an assembly at the school. Adamu Adamu/AP hide caption

itoggle caption Adamu Adamu/AP

A child receives a polio vaccine during National Immunization Days in the Nigerian city of Kano. Diego Ibarra Sanchez /Courtesy of Rotary Foundation hide caption

itoggle caption Diego Ibarra Sanchez /Courtesy of Rotary Foundation