Biologic evolution

The crab that moved to upper reaches of a river is Geothelphusa dehaani.

The feature of Geothelphusa dehaani puts out "Cry".


The cry barks when Geothelphusa dehaani is captured.

There is no crab that expresses the opinion to bark.

As for how to bark, whether it barks when coming into rut is uncertain.

It is not a feature of a male alone, and the surgical knife also barks.

I think that it is a male and the surgical knife is a similar sound in how to bark.

It is a beetle that looks like how to bark most.

There are the one to bark and the one not barking in the living thing.

There is the one that only the male barks, too.

I think it might be interesting if the living thing can be distributed in the cry.