Short, practical PDFs on how to identify dinosaur bones in the field. Essential for amateur fossil hunters.
: Studying eggshells and skeletal maturity to understand dinosaur life cycles.
A juvenile T. rex looked nothing like an adult. By cutting into fossilized bone (histology), scientists count growth rings, much like a tree. This reveals growth rates, age at sexual maturity, and lifespan. This data has proven that dinosaurs were warm-blooded, fast-growing creatures, not cold-blooded plodders.