Together with the fur seals, they constitute the Otariidae family, collectively known as eared seals. Until recently, sea lions were grouped under a single subfamily called Otariinae, whereas fur seals were grouped in the subfamily Arcocephalinae.
Peregrine falcons have been recorded diving at speeds of 200 miles per hour (320 km/h), making them the fastest-moving creatures on Earth. Other falcons include the gyrfalcon, lanner falcon, and merlin. Some small falcons with long, narrow wings are called leisure activities, and some which hover while hunting are called kestrels.