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early snakesLive Science
•79% Informative
Scientists once believed that Elapoidea , the superfamily containing cobras, coral snakes and mambas, originated in Africa .
A fossil of a file snake found in Tanzania dated to the Oligocene Epoch ( 33.9 million to 23 million years ago) supported this hypothesis.
Researchers used genetic analysis and fossils from other regions to conclude that these snakes originated in Asia .
There are now 700 species on every continent except Antarctica and many islands as well.
VR Score
91
Informative language
98
Neutral language
47
Article tone
formal
Language
English
Language complexity
66
Offensive language
not offensive
Hate speech
not hateful
Attention-grabbing headline
not detected
Known propaganda techniques
not detected
Time-value
long-living
External references
3
Source diversity
3