one unusual group of predators was a fearsome part of the food chain: the spiny arthropods known as sea scorpions
Repeated periods of glacial incursions during the Pleistocene created the permanent ice sheets that cover Antarctica
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the luxurious RMS Lusitania was also one of the fastest ships of its era
The TCS helped the ship withstand the extreme increase in temperatures during atmospheric reentry and the TCS blanket was applied to the inside of the shuttle to protect internal components and systems
Tyrannosaurus Rex Tooth Fragment hot one unusual group of predatorsMeasuring 40ft (12m) in length and weighing upwards of 14 tons, Tyrannosaurus rex was one of the largest and most powerful terrestrial predators in history. The most advanced in an 80 million year chain of tyrannosaurid evolution, T. rex had heavy, deep skulls reinforced with sutures, lightened by hollow chambers and of course, big, sharp teeth! This specimen is a fragment of a Tyrannosaurus rex tooth, recovered on private land in the Hell Creek
