What are the ethical considerations involved in excavating and studying dinosaur fossils?

Mar 19, 2020 ... NatureScope: Digging Into Dinosaurs. New York: McGraw Hill, 1997. This book has it all from tons of great information and worksheets to ... Jul 23, 2024 ... what dinosaur has 500 teeth. 874,100. 32. how to delete instagram account. 867,300. 33. when is valentines day. 857,300. 34. how to screenshot ... What is the difference between a dolphin and a porpoise? In general, dolphins are larger, have a more pronounced beak (snout) and have conical teeth while the ... rex had an incredibly powerful bite force, much higher than other theropods. The bite force was found to be between 35,000 and 57,000 Newtons per tooth (up to ... Scientists have recently gathered information suggesting that the ... The hadrosaurs had rows of some 500 to 1,400 tough teeth, depending on the species. A er the sun sets, everyone stops what they're doing, brushes their teeth, and goes to sleep—at seven in the evening! ... they have saved more than 500 sea lions ... We first diagnose the minute bones and teeth using taxonomically informative anatomical features and then determine their ontogenetic status based on ... It was during Cretaceous time and the Jurassic and Triassic periods that the great reptiles, the dinosaurs, roamed the world. Washington has Creta- ceous rocks ... Mar 20, 2025 ... Dinosaur Bone: Silicified dinosaur bone! It has a lovely brownish color and interesting pattem. Occurrence: Colorado; Wyoming; Utah. Other ... Oct 7, 2021 ... The oldest species long predate the dinosaurs, with fossils at least 500 million years old. Modern nautiluses live in coral reefs of the ...