Pinniped Pinniped Pinnipeds, commonly known as seals, are a widely distributed and diverse clade of carnivorous, fin-footed, semiaquatic marine mammals. They comprise the extant families Odobenidae (whose only living member is the walrus), Otariidae (the eared seals: sea lions and fur seals), and Phocidae (the earless seals, or true seals). There are 33 extant species of pinnipeds, and more than 50 extinct species have been described from fossils. While seals were historically thought to have descended from two ancestral lines, molecular evidence supports them as a monophyletic lineage (descended from one ancestral line). Pinnipeds belong to the order Carnivora and their
Feet forwards motorcycle Feet forwards motorcycle A Feet First (FF) Motorcycle is a class of motorcycle design that seeks to look at the two-wheeled concept afresh, and create a new form of practical personal transport. The name "feet first" (also referred to as "feet forward") was first used by Royce Creasey and refers to the rider's seating position, with feet ahead in a position (like a car), rather than below and astride, as with conventional bikes. As there are other types of motorcycle (e.g. choppers) that have a 'feet forward' position, an alternative term sometimes used is Advanced Single Track Vehicle. Designers have