The harp seal or saddleback seal is a species of earless seal native to the northernmost Atlantic Ocean and parts of the Arctic Ocean. It now belongs to the monotypic genus Pagophilus. Its scientific name, Pagophilus groenlandicus, means "ice-lover from Greenland", and its synonym, Phoca groenlandica means "Greenland seal". Originally in the genus Phoca with a number of other species, it has since been reclassified into its own genus Pagophilus.

The harp seal has a black face with silvery-gray body. Its eyes are pure black. It has black harp or wishbone-shaped markings on the back. They exhibit little sexual dimorphism. The baby harp seal (pup) has a yellow-white coat at birth, but after three days, the coat turns white and stays white for about 12 days. Adult harp seals grow up to be 1.7 to 2.0 m (5 to 6 feet) long and weigh from 140 to 190 kg (300 to 400 pounds).

Harp seals combine anatomical and behavioral approaches to managing their body temperatures, instead of elevating their metabolic rate and energy requirements. A thick coat of blubber insulates its body and provides energy when food is scarce or during fasting. Blubber also streamlines its body for more efficient swimming. Brown fat warms blood as it returns from the body surface as well as providing energy, most importantly for just-weaned pups.

The harp is a multi-stringed instrument which has the plane of its strings positioned perpendicularly to the soundboard. Organologically, it is in the general category of chordophones (stringed instruments) and has its own sub category (the harps). All harps have a neck, resonator and strings. Some, known as frame harps, also have a pillar; those without the pillar are referred to as open harps. Depending on its size, which varies, a harp may be played while held in the lap or while it stands on a table, or on the floor. Harp strings may be made of nylon, gut, wire or silk. On smaller harps, like the folk harp, the core string material will typically be the same for all strings on a given harp. Larger instruments like the modern concert harp mix string materials to attain their extended ranges. A person who plays the harp is called a harpist or harper. Folk musicians often use the term "harper", whereas classical musicians use "harpist".

Various types of harps are found in Africa, Europe, North and South America and in Asia. In antiquity, harps and the closely related lyres were very prominent in nearly all cultures. The harp also was predominant with medieval bards, troubadors and minnesingers throughout the Spanish Empire. Harps continued to grow in popularity through improvements in their design and construction through the beginning of the 20th century.

Seal commonly refers to:

Seal may also refer to:

Parry Gripp (born September 22, 1967) is a singer-songwriter as well as lead vocalist and guitarist for the pop punk band Nerf Herder.

As a songwriter, Gripp is best known for fake jingles, as in his 2005 solo album For Those About to Shop, We Salute You - a 51-track concept album mimicking various musical styles as product commercials. While it does not have one single concept, it goes through many various concept suites, such as trucks, beer, and insomnia. He also maintains a song-of-the-week website and a YouTube channel on which he creates soundtracks to internet memes as well as music videos for his own novelty songs, with titles including "Do You Like Waffles?", "Nom Nom Nom Nom Nom Nom Nom", "Last Train to Awesometown", "Spaghetti Cat (I weep for you)", "Hamster on a Piano (Eating Popcorn)", "I Am A Banana" and "Baby Monkey (Going Backwards On A Pig)". Gripp also performs the Super Hero Squad Show theme song.

Gripp also joined forces with MC Lars to perform some of the vocals, including the chorus, to 'Guitar Hero Hero (Beating Guitar Hero Doesn't Make You Slash)' a song commenting on the notion that video games like Guitar Hero take kids away from playing in bands and actually learning their instruments.