Prehistoric Dinosaur Hub on Instagram: "Spinosaurus remains one of the most controversial predators in dinosaur history. The initial idea —put forth after the discovery of more complete fossils in 2014—was that it was a fully aquatic predator, using a paddle-like tail, dense bones, and crocodile‐style jaws to hunt fish underwater.  A 2022 study found that Spinosaurus and its close relative Baryonyx had unusually dense thigh and rib bones—structures similar to those in animals adapted for submer