Government wildlife officials released two more critically endangered red wolves into the wild in North Carolina and could place several more captive-bred wolves into the habitat this year, according to a new plan submitted to a federal judge. The U.S. Fish and Wildlife Service said in the filing March 1 that it brought two male wolves from a Florida wildlife refuge, paired them with wild female wolves from North Carolina and let them loose in February. One of the male wolves was later killed by a car. The service said it also plans to release another captive-bred pair into the wild this summer and will aim to introduce captive-bred pups into any wild litters born in the breeding season that runs through May. Releases of captive-bred wolves had largely been halted by the government in recent years.