There are two places where you can adopt an animal like a lion online:
To sponsor an animal through the WWF click here. 
To sponsor a Lion through the Aspinall Foundation click here 
The Barbary, or Atlas Lion, is now extinct in the wild. We've been fascinated with these majestic creatures since time immemorial; there is archaeological evidence that lions were kept in the menagerie in the Tower of London as far back as the middle ages. This practice was maintained until the early twentieth century. Most are now in zoos and safari parks.
You can adopt or sponsor an animal through the WWF here.  or through the Aspinall Foundation here . It can be done quickly and easily online  and can make for a wonderful gift to the animal lover in your life.
The WWF  is dedicated to nurturing and protecting endangered species of animals from all over the world. Their website  offers you the opportunity to contribute to the welfare of many different species that desperately need protection. Through its animal adoption and sponsorship scheme it returns endangered animals to safe, natural habitats.
Adopt or sponsor an animal today, and help them do their vital work. Adopting an animal in this way is also a creative and worthwhile ethical gift for family or friends whether it be for Christmas, a birthday or even as a creative wedding gift.