Grooming Behavior in American Cockroach is Affected by Novelty and Odor

Table 2

The number of observed grooming events (count). Mean ± Standard error. Difference was calculated for each animal.

Series	Session	Antennae	Antennal bases	Forelegs	Midlegs and hindlegs	SUM
Series 1	1 (blank)	14.3 ± 2.2**	2.9 ± 0.4*	9.3 ± 1.1*	2.0 ± 0.5	28.4 ± 3.8**
	2 (blank)
	Difference (2 − 1)
Series 2	1 (blank)
	2 (odor)
	Difference (2 − 1)

Statistical differences between first sessions of Series 1 and 2: ;  .