Crocodilians in a sentence

Workman Publishing Co. Physiology main Because both modern crocodilians and birds have four-chambered hearts (albeit modified in crocodilians), it is likely that this is a trait shared by all archosaurs, including all dinosaurs.

Morris: Archosaurs are last living relatives of dinosaurs: birds and crocodilians.

Crocodilians also rely on the hepatic piston method, in which the liver is pulled back by a muscle anchored to the pubic bone (part of the pelvis), which in turn pulls the bottom of the lungs backward, expanding them.

Crocodilians have evolved a bony secondary palate that allows them to continue breathing while remaining submerged (and protect their brains against damage by struggling prey).

Crocodilians made the transition from a terrestrial to an aquatic mode of life.

Farming Types of farming * Alligator farming establishment for breeding and raising of crocodilians in order to produce meat, leather, and other goods.

In 1988, Jacques Gauthier proposed a cladistic definition of Reptilia as a monophyletic node-based crown group containing turtles, lizards and snakes, crocodilians, and birds, their common ancestor and all its descendants.

Many large crocodilians swallow stones (called gastroliths or stomach stones), which may act as ballast to balance their bodies or assist in crushing food, similar to grit ingested by birds.

Since crocodile anatomy has changed only slightly for the last 80 million years, current data on modern crocodilians can be used to estimate the bite force of extinct species.

The difference is that the muscles for the crocodilian diaphragm pull the pubis (part of the pelvis, which is movable in crocodilians) back, which brings the liver down, thus freeing space for the lungs to expand.

The presence of this homologous keratin in both birds and crocodilians indicates that it was inherited from a common ancestor.

These respectively evolved from dinosaurs and from early therapsids, which were both traditionally called reptiles. citation Birds are more closely related to crocodilians than the latter are to the rest of extant reptiles.

This is based on the presence of enamel, which needs to remain hydrated, an issue not faced by aquatic species like crocodilians or toothless species like birds, which have lipless and toothless beaks.

Tyrannosaurus, and most other theropods, probably primarily processed carcasses with lateral shakes of the head, like crocodilians.

Unlike other reptiles, crocodilians have hearts with four chambers allowing complete separation of oxygenated and deoxygenated blood. citation Bird anatomy main Part of a wing.

While not actually capable of movement, it does allow for greater lung inflation, by taking the weight of the viscera off the lungs. citation Crocodilians actually have a muscular diaphragm that is analogous to the mammalian diaphragm.