Journal
ANIMAL BEHAVIOUR
Volume 75, Issue -, Pages 991-1001Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.anbehav.2007.08.012
Keywords
faecal progestogen; gibbons; Hylobates lar; mating behaviour; multimale social system; ovulation; paternity confusion; pregnancy; sexual swellings