A male spider that amputates his own sperm-transferring pedipalps during copulation so as to block the female's genital opening is an example of

A) male-male competition.
B) cryptic female choice.
C) male parental investment.
D) runaway model of sexual selection.

Sperm-Transferring Pedipalps

In certain arachnids, modified appendages used by males to transfer sperm to the female during reproduction.

Male Spider

A reference to the male of the spider species, which often engages in complex mating rituals and sometimes faces post-mating cannibalism by the female.