Sella, a startup using gig workers to market, list and sell items from users on its platform, raised $3 million.. The Portland, Ore.-based company has seen increasing demand for its services over ...

The Dorsal de Nasca ridge butts into another ridge, called Dorsal de Salas y Gómez. Together the two chains of volcanic underwater mountains extend for 2,900 km (1,570 nmi) off the coasts of Peru ...

However, 332 days after the wounded shark was photographed, divers spotted the same shark, identifiable by the NOAA dart tag which remained attached to the base of its dorsal fin. There was no ...