Baghdad's art schools in Saddam Hussein's Iraq were full of paintings in stricken black and red, with portraits lacking mouths and eyes.
Lacking mouths, both use internal symbiotic bacteria to digest their meal, and somehow both are able to locate their relatively tiny targets—a skeleton or a shipwreck in the vast sea.
Lacking mouths and digestive tracts, the adult worms rely on bacteria that live in specialized cells (bacteriocytes) concentrated in various tissue layers [ 5].
The development is as follows: females carry two egg-sacks each containing one, frequently two (rarely more) large, yolky eggs; nauplii hatch as non-feeding lecithotrophic larvae, lacking mouth and labrum, and lacking a naupliar arthrite on the coxa of the antenna [8].
The worms, which lack mouths and digestive systems, use rootlike appendages packed with bacteria to feed on the bones of dead whales on the ocean floor.
The adults of this moth species, however, don't feed at all; in fact they lack mouths that would allow them to sip on nectar like other moth species.
Lacking a mouth and gut, the worms rely on bacteria in their roots to digest proteins and lipids from the bones.
Lacking any mouth, gut, reproductive organs, or indeed any evidence of internal anatomy, their lifestyle was somewhat peculiar by modern standards; the most widely accepted hypothesis holds that they sucked nutrients out of the surrounding seawater by osmotrophy or osmosis.
Two Lexicon Pgap1 KO mice were born with no facial features (Supplementary Figure S1j), lacking nostrils, mouth, tongue, mandible and ear canals.
Moreover, both lack mouth and a permanent gastrovascular cavity necessitating intracellular digestion [6], [11], [29].
In HBO's new documentary, "Broad Street Bullies," there are 153 images of brawls, nearly all ignited by the 1970s Philadelphia Flyers; 15 clear depictions of blood; 23 shots of mouths lacking teeth; and 25 oral references to Flyers-style brutality — from "baddest animal in the hockey jungle" to "a fine line between talent and terror".
