Manta rays also have long tails. However, these supersized sea creatures are true gentle giants: unlike stingrays, manta rays have tails without venomous or dangerous barbs. Great White Shark vs.

In digital dentistry, cone-beam computed tomography (CBCT) can provide complete 3D tooth models, yet suffers from a long concern of requiring excessive radiation dose and higher expense. Therefore, 3D ...

How will the largest ray compare to humans, great whites, and more? Read this manta ray size comparison to find out!

In this model, the energy and angle distributions of electrons inside the tritium-containing sample at different depths are calculated by MC simulations and then combined with the differential cross ...

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Trains.com's homepage is the main station for Firecrown's five railfan and model railroading titles and all videos. Journeys start here.