Animals do know how to love and then feel jealous of their beloved ones. Tina was a beluga whale living in an aquarium in South Korea.
When Tina was brought there it was difficult for her to adjust to teh aquarium immediately. The only one who found language with her was one male employer. They understood each other perfectly.
Soon Tina was so attached to the employer that she felt feeling jealous of him. Once she poured water to the female employers who were standing close to her beloved one. The moment was so funy!