Inside an NIH primate lab
A number of studies at the National Institutes of Health Intramural Research Program use rhesus monkeys to examine the impact of environment on early childhood development, such as maternal attachment.
Earlier this year PETA, the animal rights organization, initiated a request through the Freedom of Information Act to obtain materials -- including these photos -- from the NIH. PETA claims these studies are abusive and not scientifically justified. The NIH says the purpose of these animal studies is to help scientists develop more effective human mental health treatments.
These photos were provided to PETA by the NIH and were taken between 2009 and 2012.
Read more: Questions raised about mental health studies on baby monkeys at NIH labs
Rhesus monkeys at the NIH
A baby rhesus monkey at NIH lab.
These photos were provided to PETA by the NIH and were taken between 2009 and 2012.
Rhesus monkeys at the NIH
An adult rhesus monkey holds a baby at an NIH lab.
Monkeys at two labs were used in studies to understand risk factors associated with mental illness, such as parental neglect and childhood abuse or trauma.
Rhesus monkeys at the NIH
Researchers with a baby rhesus monkey at an NIH lab.
Rhesus monkeys at the NIH
A baby rhesus monkey at an NIH lab.
Rhesus monkeys at the NIH
A baby rhesus monkey looks through its cage at an NIH lab.
Rhesus monkeys at the NIH
A group of adult and baby rhesus monkeys at an NIH lab.
These photos were provided to PETA by the NIH and were taken between 2009 and 2012.
Read more: Questions raised about mental health studies on baby monkeys at NIH labs