Courting Male Fiddler Crabs Adjust Temporal and Structural Elements of Their

Multiple Choice

Courting male fiddler crabs adjust temporal and structural elements of their claw-waving display in relation to female distance. As the female gets closer, the claw-waving display

A) appears to become more intense as the interval between each wave decreases.
B) becomes more idiosyncratic to that particular male.
C) is presented with increasingly large horizontal movements.
D) slows as the male's chance of a successful mating appears to increase.