Eventually tracheae cannot develop beyond a certain size. Based on their calculations, the researchers figure modern beetles cannot grow larger than about six inches. This happens to be about the ...

"Their tracheae remain filled with liquid. Moreover, their tubes expand in a sausage-like fashion, which is why we have called the protein 'Wurst', German for sausage." ...

The network of tracheae also allows carbon dioxide produced by the insect’s metabolism to exit the body. This system of gas exchange is relatively inefficient compared to vertebrate respiration and ...

Unlike other animals, insects don't have lungs. Instead they have breathing holes along their bodies. The holes, called spiracles, connect to tubes, called tracheae, that carry oxygen to their cells.

IN NATURE (vol. xvii. p. 284) is a notice of a work by Dr. Palmen, of Helsingfors, on the morphology of the tracheal system. From the wording of the notice it appears as if the views of Dr. Palmen ...

Thomas H. Montgomery, Jr., On the Spinnerets, Cribellum, Colulus, Tracheæ and Lung Books of Araneads, Proceedings of the Academy of Natural Sciences of Philadelphia ...

This neon network of “branches” is not part of a plant but the egg chamber and breathing tubes of a giant grasshopper. This neon network of “branches” is not part of a plant but the egg chamber and ...

Contraction of the tracheae, the x-ray movies revealed, expelled as much as 50 percent of the air volume at a time, depending on the species of insect.

Trumpeter swans, Whooping cranes and Trumpet birds are the noisiest members of their respective groups, and exhibit the most complicated and elongate tracheae of their respective groups. I think ...

The additional oxygen meant that an insect's tracheae could be relatively small compared to the rest of its body, and still channel lots of oxygen. All of that oxygen resulted in super-sized insects.

What's the Context: Earlier windpipe transplants have also used tissues derived from the patients' stem cells---but the tissues were grown on donor tracheae, not artificial scaffolds, meaning that a ...