Well, we’re not sure. There are many unanswered questions about Graboid biology. For example, why were they seen in the late 1800s, then not again until the 1990s? Were their eggs dormant all that time? Unfortunately, nearly all Graboids have been killed (so far) each time they’ve appeared, so El Blanco is an anomaly. Our best guess is that he/she can live more than fifty years. We’ll have to wait and see.
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