Stomach the first three chambers of which are all lined with oesophageal mucosa. In birds and crocodilians, the stomach is divided into two regions. Anteriorly is a narrow tubular region, the proventriculus, lined by fundic glands, and connecting the true stomach to the crop. Beyond lies the powerful muscular gizzard, lined by pyloric glands, and, in some species, containing stones that the animal swallows to help grind up food. In insects there is also a crop. The insect stomach is called the midgut. Information about the stomach in echinoderms or molluscs can be found under the respective articles. Stomach The stomach
The Trouble with Atheism matter of choosing something for which there is no scientific proof either way". He argues that adhering to both religious supernaturalism and scientific naturalism is not contradictory, but a "balance" of the "very essence of what it is to be human". Based on arguments for God such as the fine-tuned universe argument, and on a lack of a conclusive understanding of pre-Big Bang physics, Liddle states that "the true scientific position, of course, is that there may be a God, and there may not be a God". Liddle identifies this position as agnostic, which he distinguishes from the "zealous" atheism