Rhesus

Blood-typing monkey species

Rhesus most commonly appears in rhesus monkey, a macaque species native to South Asia, widely used in medical research.

The rhesus factor (Rh factor) in blood typing was discovered through experiments on these monkeys—blood is classified as Rh-positive or Rh-negative based on the presence of this protein: The baby's rhesus status can cause complications if it differs from the mother's.

primate

macaque

Asian cheek-pouched primate

grooming · India · temple · Nepal · Southeast Asia · arboreal · omnivore · social hierarchy · alpha male · infant

research

laboratory

Facility for scientific investigation

Salk · polio · neuroscience · behavioral · cognition · psychology · Harlow · attachment · surrogate mother · ethics

blood

factor

Contributor to result

Rh · incompatibility · transfusion · typing · antibodies · sensitization · crossmatch · blood bank · serology · agglutination

pregnancy

incompatibility

Unable to function together

hemolytic · jaundice · anemia · amniocentesis · bilirubin · prevention · injection · maternal · fetal · placenta

Opposites
primate taxonomy

Rhesusgreat ape

Tailless primate, human-adjacent

ape · chimpanzee · gorilla · orangutan · human

rh blood factor

RhesusRh negative

Blood without rhesus factor

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