That was about 3m years ago, when the globe was about 3-5F warmer on average, the Arctic 14.4F warmer, megasharks swam the oceans, and sea levels stood at least 20 ft above their current heights.
Source: wiktionary
Megashark
Synonyms for "megashark"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.