speciate
🇬🇧/ˈspiːsɪˌeɪt/ 🇺🇸/ˈspɪʃɪˌeɪt/ 19to form or develop into a new biological species 形成或进化新生物物种
verb [vt. 及物动词]vi. （通过进化）形成物种
The finding implies that their hosts, both mammals and birds, had also begun to flourish and speciate before the reign of the dinosaurs was over.
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