Stress behaviors in captive robust capuchins: Effects of humidity, visitors, management and sex

Wild robust capuchins (Sapajus spp.) are omnivorous neotropical primates that live in relatively large groups in extensive home and daily ranges with activity budgets dominated by traveling, foraging, and object manipulation, meaning that enclosed spaces can result in significant deprivation. Space restriction, manipulation by caretakers, and the chronic presence of visitors, can disrupt the animals’ […]

The Stress of Not Being Able to Perform Dustbathing in Laying Hens

Vestergaard, K. S., E. Skadhauge and L. G. Lawson. The stress of not being able to perform dustbathing in laying hens. Physiol Behav 62(2) 413-419, 1997.–The stress of not being able to perform dustbathing was studied in small groups of laying hens. The birds were reared and kept for 2.5 years in cages with either […]