They don't know what to make of it.
2 seconds sound clip from the Congo (1995) movie soundboard.
You can hear this line at 01:30:42.050 in the Blu-ray version of the movie.
Quote context
[...]
- Is there a way out back there?
- Ugly. Gorillas. Ugly. Go away.
- They don't know what to make of it.
- Maternal instinct... long may she reign.
- What the hell are you doing anyway?
- What am I doing? I'll tell you what I'm doing. We're getting out of here.
- Put them on the endangered species list.
[...]