Overview and Meaning
'Sexual motivations' is the term used by Grant & Mackintosh for the behaviors that lead to contact between potential mates in the sexual behavior sequence. This involves potential solicitation behaviors, and initial approach and investigatory behaviors by both sexes.
A female mouse will indicate sexual motivation by hopping, ear-wiggling, and darting movements.
The following definitions describe the different forms of motivation presentation that occur between mice.
- Crawl-Over: (rarely seen in mice) moving over a potential mate and may involve urination under more aggressive circumstances.
- Crawl-Under: (common) pushing head and forebody beneath a potential mate, followed by head lifting and sniffing.
- Push Past: (common) moving between the cage wall and a potential mate.