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Mosasaurus; King of the Cretaceous Seas Related closely to monitor lizards, and snakes, Mosasaurus was not a dinosaur, but an aquatic lizard that evolved to become the undisputed king of the seas, back when the seas made up 80% of livable space on earth.  Dwarfing the land carnivores, Mosasaurus grew up to 80 feet long, weighing 8 tons (think tour bus).So how do you become the biggest, the baddest, the top carnivorous predator?  Well, you keep what works and toss what doesn't.  Over time, you will evolve to be so in tune with your environment, that you are destined to...

If you ever look up information on Plesiosaurus, you can't help but notice all the references to the Loch Ness monster.  But aren't we stretching just a little too far to think a prehistoric creature of this size could have survived when most other "mega stars" from the late cretaceous period didn't?  Like the Mosasaurus, Plesiosaurus was not a dinosaur, but an aquatic lizard.  And thank goodness, because if they never came to the surface to breathe, perhaps, the legend of Loch Ness would never have come about.  For tragic lack of tourism, the economy of the Scottish highlands could...

One of the most important fossil sites for understanding the Eocene is found at Green River, located in western Colorado, eastern Utah and southwestern Wyoming in the United States. During the Eocene, this region was located at much the same latitude it is today, though global climate was more equable. Therefore, the climate in which the organisms lived differs somewhat from that of the present-day western United States. The fossils, especially plants, found at this site indicate that the climate was moist temperate or sub-tropical, with temperatures ranging from 15 to 20 degrees Celsius. In addition to the plants, another...