Battle of the Sexes - In the Animal World

1/13/1999

This episode looks at how females force males to prove their worth before being accepted as mates.

1/20/1999

This episode reveals the sexual strategies that are used to ensure that the sperm reaches the egg.

1/27/1999

This episode looks at the strategies the sexes use to ensure they're not the ones left holding the baby.

2/3/1999

This episode looks at sex & the role it plays within family groups & the violence & jealousy it causes.

2/5/1999

Examines the reasons for sex,how some species have abolished it whilst for others it ensures survival.