It's there anal cavity openIng and closing really fast.
They make sounds and they can collorful
click beetles
well it sounds like your lifters are ticking The connecting rods screaming LET ME OUT!!!
If the ticking sounds like a "normal" ticking, it is probably the fuel injectors.
The Oriental cockroach which is most often found outside near water sources, only makes very soft clicking sounds. They are very hard to hear with the human ear.
horses make neighing sounds
98 Chevy new 383 block 30k, ticking noise from sounds like heads . 210k on heads;
Knocking as opposed to pinging or ticking, usually means seriously worn bearings of some sort. Time for an overhaul.
A Metronome.
A cockroach mix is actually an alcoholic drink that uses parts of a cockroach to make it. This beverage is not for the weak of mind.
A Metronome
A metronome