As with other cats, the male lion's penis has spines which
point backwards. Upon withdrawal of the penis, the spines
rake the walls of the female's vagina, which may cause
ovulation. A lioness may mate with more than one male when
she is in heat; during a mating bout, which could last
several days, the couple copulates twenty to forty times a
day and are likely to forgo eating.
Lions reproduce very well in captivity.
During a mating bout, a couple may copulate twenty to
forty times a day for several days; the ruff of the female
is clearly visible. The average gestation period is around
110 days, the female giving birth to a litter of one to
four cubs in a secluded den (which may be a thicket, a
reed-bed, a cave or some other sheltered area) usually
away from the rest of the pride.