Figure 5From: Assisted reproductive technologies in rhesus macaquesGrowth rates for ART-produced offspring. The average weight in kilograms for singleton (closed diamonds) and twin (closed square) offspring are plotted versus time in years. Results are compared to a group of singleton infants produced in the timed mated breeding colony (closed triangle) at ONPRC. Significant differences were observed between the singleton and twin offspring at birth and up until 1 year of age. Results are from Wolf and coauthors [7].Back to article page