- Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area in California. BART serves 50 stations along six routes and 131 miles (211 kilometers) of track, including a 9-mile (14 km) spur line running to Antioch, which uses diesel multiple-unit vehicles, and a 3-mile (4.8 km) automated guideway transit line serving the Oakland International Airport. With an average of 146,500 weekday passengers as of the fourth quarter of 2022 and 41,286,400 annual passengers in 2022, BART is the fifth-busiest heavy rail rapid transit system in the United States.
- Dinosaur (Wikipedia)
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya and their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds.
