1. Birds sing to court mates.
鸟类通过唱歌来求偶。
2. Courtship behavior is part of animal reproduction.
求偶行为是动物繁殖的一部分。
3. Male animals often perform complex courtship displays.
雄性动物通常会进行复杂的求偶展示。
4. Courtship dances are common in many animals.
求偶舞蹈是许多动物的常见行为。
5. After successful courtship, animals form pair bonds.
求偶成功后,动物会建立配对关系。