Figure 2.
Male mice are highly responsive to extracts from male preputial and lacrimal gland. Resident males were exposed to a ”dummy mouse” swabbed with PBS, male urine, preputial gland extract, lacrimal gland extract or Harderian gland extract for 5 min. The latency to approach the dummy mouse swabbed with preputial gland extract and lacrimal gland extract was significantly shorter than the one swabbed with PBS (*P<0.05). The resident mice did not show any interest in the dummy mouse swabbed with Harderian gland extract nor PBS. The data points and error bars represent the averages and standard errors of at least ten independent experiments, each consisting of duplicate measurements.