Bacteria, as asexual organisms, inherit identical copies of their parent's genes (i.e., they are clonal). However, all bacteria can evolve by selection on changes to their genetic material DNA caused by genetic recombination or mutations. Mutations come from errors made during the replication of DNA or from exposure to mutagens. Mutation rates vary widely among different species of bacteria and even among different clones of a single species of bacteria. Genetic changes in bacterial genomes come from either random mutation during replication or "stress-directed mutation", where genes involved in a particular growth-limiting process have an increased mutation rate.
What can cause mutation in bacteria?
changes to their genetic material DNA

Child soldiers have and continue to play a major part in the Burmese Army as well as Burmese rebel movements. The Independent reported in June 2012 that "Children are being sold as conscripts into the Burmese military for as little as $40 and a bag of rice or a can of petrol." The UN's Special Representative of the Secretary-General for Children and Armed Conflict, Radhika Coomaraswamy, who stepped down from her position a week later, met representatives of the Government of Myanmar on 5 July 2012 and stated that she hoped the government's signing of an action plan would "signal a transformation." In September 2012, the Myanmar Armed Forces released 42 child soldiers and the International Labour Organization met with representatives of the government as well as the Kachin Independence Army to secure the release of more child soldiers. According to Samantha Power, a US delegation raised the issue of child soldiers with the government in October 2012. However, she did not comment on the government's progress towards reform in this area.
How many child solders were released from the Burmese military in 2012 ?
the Myanmar Armed Forces released 42 child soldiers

From 1877 to 1878, the area suffered a rash of stagecoach robberies. Most notable, however, were the two holdups committed by masked road-agent William Whitney Brazelton. Brazelton held up two stages in the summer of 1878 near Point of Mountain Station approximately 17 mi (27 km) northwest of Tucson. John Clum, of Tombstone, Arizona fame was one of the passengers. Brazelton was eventually tracked down and killed on Monday August 19, 1878, in a mesquite bosque along the Santa Cruz River 3 miles (5 km) south of Tucson by Pima County Sheriff Charles A. Shibell and his citizen's posse. Brazelton had been suspected of highway robbery not only in the Tucson area, but also in the Prescott region and Silver City, New Mexico area as well. Brazelton's crimes prompted John J. Valentine, Sr. of Wells, Fargo & Co. to send special agent and future Pima County sheriff Bob Paul to investigate. Fort Lowell, then east of Tucson, was established to help protect settlers from Apache attacks. In 1882, Frank Stilwell was implicated in the murder of Morgan Earp by Cowboy Pete Spence's wife, Marietta, at the coroner's inquest on Morgan Earp's shooting. The coroner's jury concluded that Spence, Stilwell, Frederick Bode, and Florentino "Indian Charlie" Cruz were the prime suspects in the assassination of Morgan Earp. :250 Deputy U.S. Marshal Wyatt Earp gathered a few trusted friends and accompanied Virgil Earp and his family as they traveled to Benson for a train ride to California. They found Stilwell lying in wait for Virgil in the Tucson station and killed him on the tracks. After killing Stilwell, Wyatt deputized others and rode on a vendetta, killing three more cowboys over the next few days before leaving the state.
What crime increased in the Tucson area in 1877?
stagecoach robberies