![Hammer Bat, Female](https://sp-ao.shortpixel.ai/client/to_webp,q_glossy,ret_img/https://www.tremarctos.com/wp-content/uploads/2023/03/3K1A8742-Edit.jpg)
Hammer Bat, Female
Hammer Bat, Female (Hypsignathus monstrosus), Yaounde, Cameroon
Male hammer bats have a massively enlarged larynx which they use to produce a honking noise to attract mates. Here’s an audio recording: https://www.inaturalist.org/observations/140714659.