Other mammals also develop a notochord as embryos. And so do birds, reptiles, amphibians, and fish. Even our closest invertebrate relatives, such as lancelets, have notochords. All animals with a ...

Experiments with simple chordate animals show how decay may make the ... as whether a linear structure is the gut or the notochord. Sansom and colleagues' analysis 1 offers a cautionary tale ...

and the notochord — a rod-like structure that gives rise to the backbone in vertebrates, and which is a defining characteristic of all chordate animals. Vertebrates and their sister group ...

The notochord, a rod-shaped tissue, is a crucial part of the scaffold of the developing body. It is a defining feature of all animals with backbones and plays a critical role in organizing the ...

These animals hunted along the seabed ... Fossils found in the Burgess Shale of British Columbia show traces of a notochord (a rodlike primitive backbone), a significant step in the evolution ...