The well-preserved skull belongs to a never-before ... it was bipedal or quadrupedal," Zhang said. —230 million-year-old dinosaur is oldest ever discovered in North America — and changes ...
For the second year in a row, we invite students to document the local, offline communities that interest them. Contest dates: Dec. 4, 2024, to Jan. 15, 2025. By The Learning Network Step-by ...