Lion Gestation Period: How Long Is a Lion Pregnant?

How long is a lion pregnant?

A lion carries her cub for an average of 110 days, or about 3 months and 2 weeks. Counting from the breeding date, birthing is normal anywhere from day 105 to day 115.

Key checkpoints across the 110-day lion gestation, measured in days from breeding:

Estimate your lion's birthing date

Enter the breeding date for an estimated birthing date at 110 days.

Lion gestation stages, month by month

Signs a lion is pregnant

• She stops cycling and behaviour changes, becoming less tolerant of the pride
• Ultrasound from about day 45 confirms the pregnancy and often the cub count
• The abdomen fills out visibly from around day 70
• Nipples enlarge and mammary tissue develops in the last month

Signs of approaching birthing

• She hunts less, rests more and seeks out secluded ground
• Complete isolation and den seeking in the final days before the birth
• Contact your vet if labour stalls, if the animal strains without progress, or if there is abnormal discharge before birthing begins.

What affects lion gestation length

• Lions carry for about 108 days — around three and a half months — which is short for such a large animal because the cubs are born tiny, blind and helpless at roughly 1.5 kg.
• Lionesses leave the pride to give birth alone in dense cover or rocks and keep the cubs hidden for six to eight weeks, moving them between den sites to avoid predators and males.
• Lionesses in a pride synchronise their breeding, so several litters arrive together and the females nurse each other's cubs communally, which greatly improves survival.
• A lioness comes back into oestrus within weeks if she loses her litter, which is why incoming males that kill cubs gain breeding opportunities so quickly.
• Litters are usually two to four cubs, and in the wild roughly half or fewer survive their first two years.
• Cubs' eyes open at three to eleven days, they walk at about three weeks and are weaned at six to seven months, but stay with the pride for years.

Lion gestation chart

Every fifth breeding date across the year with the matching birthing date, calculated at 110 days. Find the row closest to the date the lion was served; because normal gestation spans 105 to 115 days, plan for a window of a few days either side. Filter by month, or print the chart for the barn wall or breeding record: navigation, buttons and adverts are hidden on paper.

Sources for lion gestation figures

Figures on this page are drawn from zoo felid breeding records, published lion reproduction research and long-term field studies of wild prides, and checked against the references below. Averages describe healthy animals under normal management; individual animals vary, and nothing here replaces advice from your vet.

• Association of Zoos and Aquariums (AZA) — species husbandry and animal care manuals
• Smithsonian's National Zoo & Conservation Biology Institute — species fact sheets
• Published zoological studies of captive births