Beetle breathing

Beetle breathing highly complex, study finds

Excerpt:

X-rays that effectively peel away the opaque outer-cover off beetles have revealed the bugs have a more complex breathing apparatus at work than previously suspected.

Despite their relatively small body size, insects need more than a simple, mini-respiratory system to suck in enough oxygen to carry out basic processes such as scuttling around.

Results from a recent study reveal that rather than air just passively flowing in and out, a graceful inflation and deflation of tracheal tubes helps shuttle oxygen through the bodies of ground beetles.

Comment: Interesting in case you stay awake wondering how beetles breath. It really is interesting!