New fossils and technology reveal insights into the evolutionary origins of snakes
Recent discoveries of new snake fossils and advancements in genetic and imaging technologies are providing unprecedented insights into the evolutionary origins of snakes. Scientists are using micro-CT scans and 3D models to analyze fossil skulls, revealing that snakes likely evolved from burrowing lizards in forests, not marine environments, as previously thought. The study of ancient snake species like *Najash rionegrina* and *Coniophis* suggests that snakes lost their limbs gradually and developed unique skull mobility for swallowing large prey. This research helps to clarify the timeline and environmental context of snake evolution, highlighting the importance of combining paleontological evidence with modern genetic and developmental biology.
Key Points
- New snake fossils and advanced technologies like micro-CT scans are revolutionizing understanding of snake evolution.
- Evidence suggests snakes likely evolved from burrowing lizards in forests, challenging the marine origin hypothesis.
- Fossil analysis indicates that snakes gradually lost limbs and developed specialized skull structures for consuming large prey.
- Combining paleontological, genetic, and developmental biology data is crucial for tracing the complex evolutionary history of snakes.
Exam Facts
- The study involves analysis of fossils like *Najash rionegrina* and *Coniophis*.
- The research uses micro-CT scans and 3D models.
- The study was published in Science Advances.
- The research was conducted by scientists from the University of Michigan and other institutions.
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