We do know that it evolved several times in living birds, so that it may be just a parallel evolution of this feature.
我们确实知道它在现存鸟类中进化了几次，所以它可能只是这个特征的平行进化。
Parallel evolution
原声例句
古生物科普
经济学人（汇总）
The range of human foods is not just a source of epicurean joy but a reflection of ecological and anthropological variety -- the consequence of tens of thousands of years of parallel yet independent cultural evolution.
范围广泛的人类食物不仅是享口腹之乐的源泉，也是生态和人类学多样性的反映——这是数万年平行而独立的文化进化的结果。
中文百科
平行演化
定义：两个或多个相关但不同种系的生物，因生活在相似环境而发育了相似的形状。
- 趋同演化
- 演化
- 基因重复
- 同源
- 分子演化
- 平行演化
- 物种形成
英语百科
Parallel evolution 平行演化
Parallel evolution is the development of a similar trait in related, but distinct, species descending from the same ancestor, but from different clades.
- Principle of Melting的意思
- Principle of Micro computer的意思
- principle of microreversibility的意思
- Principle of Microscopic Reversibility的意思
- principle of minimal redundancy的意思
- principle of minimization risk的意思
- principle of minimum的意思
- principle of minimum complementary energy的意思
- Principle of minimum differentiation的意思
- principle of minimum dissipation of energy的意思
- principle of minimum dissipation of entropy的意思
- principle of minimum distance moved的意思
- Principle of minimum energy的意思
- principle of minimum entropy production的意思
- principle of minimum Gibbs energy的意思
- principle of minimum potential energy的意思
- principle of minimum strain energy的意思
- principle of minimum virtual mass的意思
- principle of mobile component的意思
- principle of mobile equilibrium的意思
- principle of model的意思
- principle of model building的意思
- principle of moment的意思
- principle of moment of momentum的意思
- Principle of moments的意思