While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally appear. Whether these males retain ...

Researchers reporting in the Cell Press journal Current Biology on April 17 have discovered little-known cave insects with rather novel sex lives. The Brazilian insects, which represent four distinct ...

Researchers have named a newly discovered beetle after beer giant Carlsberg due to its bottle-opener shaped sexual organs, and have also created a stainless steel version of the penis. The beetle is ...