Photo Gallery: Big Cats

A female lion in Botswana's Okavango Delta stretches as other members of the pride lounge nearby. Pride size can range from 2 to 18 females and cubs, all related to one another.

National Geographic is working to avert the lions' extinction with the Maasailand Emergency Fund. Donations will be used to support animal husbandry education and job creation for the Maasai, among other endeavors.