They comprise the extant families Odobenidae (whose only living member is the walrus), Otariidae (the ... which is also the largest carnivoran.[b] Several species exhibit sexual dimorphism.

This location is so remote, it took the crew over a week to get there. On the coast of northern Russia in Asia’s Arctic is one of the biggest concentrations of animals on the continent.

Our goal was to film walrus, we wanted to capture them on ice floes and had a specially built “megadome” that would allow David to capture imagery of the walrus on ice from above and below ...