“…In obtaining more grooming, the behavior of the naloxone-treated, adult rhesus females in this study was like that of talapoin monkeys (Fabre-Nys et al, 1982;Keverne et al, 1989;Meller et al, 1980), but unlike that of adult lactating rhesus females that had small (4-to 10-week-old) infants, and actually showed a decrease in grooming interactions after naloxone treatment (Martel et al, 1993). Mothers are very protective of their new offspring and will often avoid companions that are curious about the new arrival and may try to touch, hold, or even kidnap the infant (Hinde & Procter, 1977;Maestripieri, 1993;Rowell, Hinde, & Spencer-Booth, 1964).…”