 Jaws of steel ... this artist's rendition shows the armor-plated fish dunkleosteus, a 33 foot long (10 metres), four tonne (3600kg) monster that terrorised other marine life in about 400 million years ago / Reuters |
| Jaws of steel ... this artist's rendition shows the armor-plated fish dunkleosteus, a 33 foot long (10 metres), four tonne (3600kg) monster that terrorised other marine life in about 400 million years ago / Reuters |
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