Feb. 23 (UPI) --When cockroaches square off, more often than not, the roach with the bigger respiratory system emerges victorious. Male cockroaches compete with one another for access to breeding ...

A CT scan of a male wide-horned hissing cockroach (Gromphadorhina oblongonota) showing the full respiratory volume. Highlighted are the sclerotized fourth spiracles, which these cockroaches use to ...

A new study has discovered that not all cockroaches are equal and "super athletes", with larger respiratory systems, are more likely to win physical mating battles. The research, published in the ...