Females Coatis Help Unrelated Offspring Steal Food | LiveScience:
"Coatis, which are found in South America, are a highly social species related to the raccoon and known for being particularly aggressive, especially when it comes to food. They live in cohesive groups of up to 65 individuals that usually include only a single adult male.
Over the course of the three-year study, Hirsch monitored the behavior of 150 individual coatis in four social groups in Iguazu National Park in Argentina. Using genetic data, he found that in 57 percent of the cases in which an adult female helped a juvenile during an aggressive encounter, the female was not the mother of the juvenile."