They do not have a sonar system but two large, round eyes instead. If you go into a tropical forest at night you will see thousands of clusters of glittering stars in the darkness--the eyes of colonies of roosting Flying Foxes.
它們不具聲納系統，擁有一雙大而圓的眼睛，在熱帶森林，入夜後，總可以見到成千上百如落入凡間、閃閃發光的群星，正是一群群棲息林間的狐蝠。