Nadira and Ateno, the TLK based twin cubs.

When they were born, Nadira was much smaller than her twin brother Ateno. She was very weak and hardly moved, and her parents feared she would soon pass away. But Ateno, sensing his twin's need, cuddled close to her and gave her the will to survive. They have been inseparable since then, though Nadira enjoys finding ways to get her brother into trouble, and the fact he's always trying to protect her doesn't help.