Research Into Snake Evolution
To uncover the reasons behind snakes’ evolutionary success, scientists analyzed the genomes of nearly 1,000 species of snakes and lizards. In addition, they examined the stomach contents of more than 60,000 museum specimens and field observations to better understand how snake diets evolved over time.
This enormous dataset allowed researchers to construct a detailed evolutionary family tree showing how different snake body shapes, hunting strategies, and feeding habits developed over millions of years.
A Major Evolutionary Boom After the Dinosaurs
One of the most important moments in snake evolution occurred after the extinction of the dinosaurs about 66 million years ago. With many ecological niches suddenly empty, snakes rapidly diversified and adapted to new environments.
This period saw the emergence of many of the snake groups we recognize today. Larger species evolved powerful constricting muscles, while others developed advanced venom systems to capture prey more efficiently.
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