您好： Giraffes have long been thought to be mute, but that is not the case. Giraffes communicate by emitting moans or low notes that the human ear cannot hear. Giraffes have a symbiotic relationship with tickbirds. These small birds ride on the giraffe's back, eating pesky insects off of its skin. In return for food, the birds serve as an early warning signal, alerting giraffes to any approaching predators with a loud chirp.
希望对您的学习有帮助
【满意请采纳】O(∩_∩)O谢谢
欢迎追问O(∩_∩)O~
祝学习进步~
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024