Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙，视觉退化的根本原因在于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因在于它具有一定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有更发的回能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发的回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因在于它具有一种更发回声定位能力。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因在于它具有一种声定位能力。