grooming
Mongooses Gift Grooming for Guard Duty
Humans and other primates often reciprocate good deeds. A new study suggests a nonprimate, the dwarf mongoose, does so, too, even after a delay. Christopher Int…
Sick Vampire Bats Restrict Grooming to Close Family
When vampire bats feel sick, they still engage in prosocial acts such as sharing food with nonrelatives. But they cut back on grooming anyone other than their c…
