"So, naturalists observe, a flea has smaller fleas that on him prey; and these have smaller still to bite ’em; and so proceed ad infinitum."
- Jonathan Swift
November 7, 2010
November 7 - Syngamus trachea
Syngamus trachea is a nematode known as the gapeworm, which infects birds such as chickens and turkeys. The name comes from the fact that they live in the birds' trachea and, when there are enough of them, they can cut off the airways, causing the bird to gape open their mouths. Females live in permanent conjoinment with males. When they lay eggs, the bird will cough them up and swallow them, and then they will pass out with its feces. Another bird may come along and ingest them or a snail or a worm may serve as an intermediate host.