The discus throw, also known as disc throw, is a track and field event in which an athlete throws a heavy disc—called a discus—in an attempt to mark a farther distance than their competitors. It is an ancient sport, as demonstrated by the fifth-century-BC Myron statue Discobolus. Although not part of the modern pentathlon, it was one of the events of the ancient Greek pentathlon, which can be dated back to at least to 708 BC, and it is part of the modern decathlon.
The discus throw is an athletic discipline.
Driftless Area National Wildlife Refuge is a United States National Wildlife Refuge in northeastern Iowa, southwestern Wisconsin and northwestern Illinois. It is a non-contiguous collection of parcels in the vicinity of the Upper Mississippi River National Wildlife and Fish Refuge.
Discus macclintocki is a species of land snail in the family Discidae known commonly as the Iowa Pleistocene snail and Pleistocene disc. It occurs in Iowa and Illinois in the United States. It is a federally listed endangered species.
The umbilicus of a shell is the axially aligned, hollow cone-shaped space within the whorls of a coiled mollusc shell. The term umbilicus is often used in descriptions of gastropod shells, i.e. it is a feature present on the ventral side of many snail shells, including some species of sea snails, land snails, and freshwater snails.
Johann Carl Megerle von Mühlfeld was a scientist and zoologist who lived from 1765 to 1842.
Discus is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Discidae, the disk snails.
Discula tabellata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies.
Discula testudinalis a species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies.
Discus guerinianus is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Discidae, the disk snails.
Discus marmorensis, common name "the marbled disc", is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails. This species is endemic to the United States.
Discus scutula is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Discidae, the disk snails.
Discidae is a taxonomic family of small air-breathing land snails, terrestrial gastropod mollusks in the superfamily Punctoidea.
Discus rotundatus, common name rotund disc, is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
Discus perspectivus is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
Discus ruderatus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
Haliotis discus, commonly called "disk abalone," or "Edo abalone," is a species of abalone sea snail.
Discus engonatus is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
Discus retextus is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
Discus textilis is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.
