Bird neural canals are weird, part 2: the lumbosacral expansion

Key Points

• The study identifies the lumbosacral expansion as a significant feature of bird anatomy, contributing to our understanding of spinal cord variations.
• The analysis highlights that the lumbosacral expansion is not exclusive to birds, implying broader evolutionary implications across species.
• Despite its peculiarities, the lumbosacral expansion of the spinal cord requires no extraordinary explanation, indicating it is a common anatomical feature.
• This examination of neural canals adds depth to the existing knowledge about avian spinal cord anatomy and evolutionary biology.