The first is to produce fewer emissions, which means burning fewer fossil fuels. (carbonbrief.org)
Few fossils of its relatives have been found, so its lineage is almost as hotly debated as that of humans. (newscientist.com)
But exactly what early dinosaurs and their closest relatives looked like has been something of a mystery, because few fossils exist from the dawn of the dinosaurs. (sciencemag.org)