Assertion details
Summary
lion's history stretch 1 for hundreds of millions of years
1 triples in cluster
history stretch for hundreds of millions of years 1
1 source sentences
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  • SRC Among the most extraordinary animals on earth , jellyfish ( Cnidarians , scyphozoans , cubozoans , and hydrozoans ) are also some of the most ancient , with an evolutionary history stretching back for hundreds of millions of years .