In return for saving their lives , the Ancient Spirits of Evil demanded that Tygra ( who was just a baby at the time ) be sacrificed .
They considered baby a bigger threat to their existence than Lion - O would be .
In return for saving their lives , the Ancient Spirits of Evil demanded that Tygra ( who was just a baby at the time ) be sacrificed because they considered him a bigger threat to their existence than Lion - O would be .