Shira

Shira was a female saber-toothed tiger and a distrusted first mate of the seafaring ape, Captain Gutt. She is the secondary antagonist of Ice Age: Continental Drift but she went on to leave her life at sea and joined the the herd as Diego's mate.

Shira lived in the Herd Valley happily married to Diego for many years to come and the sabers soon developed the urge to start a family. She along with the rest of the herd were forced to leave to stop the mother of all asteroids from destroying the planet.

Biography
Like all the other members of Gutt's crew, Shira was once in danger for her life. After Gutt rescued her she pledged her loyalty to him.

Shira defected from Gutt when she met another saber named Diego, who convinced her to leave the crew and join the herd of animals that he was a part of. Realizing unlike Gutt, the herd would look out for her, Shira renounced her position as a pirate, and married Diego.