Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha and are the sister group to the rays. However, the term "shark" has also been (incorrectly) used to refer to extinct members of the subclass Elasmobranchii, which are technically outside the Selachimorpha clade. Notable examples of improper classification include Cladoselache,Xenacanthus, and various other members of the Chondrichthyes class like the holocephalid eugenedontidans.
Nyon is a municipality in Nyon District in the canton of Vaud in Switzerland. It is located some 25 kilometers north east of Geneva's city centre, and since the 1970s it has become part of the Geneva metropolitan area. It lies on the shores of Lake Geneva and is the seat of Nyon District. The town has a population of 21,718 and is famous in the sporting world for being the headquarters of the Union of European Football Associations (UEFA) and the European Club Association (ECA). It is connected to the rest of Switzerland by way of the Route Suisse, the A1 Motorway and the railways of the Arc Lémanique.
Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters.
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing resulting from cross-pollination or allow selfing when self-pollination occurs.
The knight anole is the largest species of anole in the Dactyloidae family. Other common names include Cuban knight anole or Cuban giant anole, highlighting its native country, but it has also been introduced to Florida. In its native Cuba, this large anole is called chupacocote.
Phalaenopsis equestris is a flowering plant of the orchid genus Phalaenopsis and native to Philippines and Taiwan. The inflorescence has 10 to 20 flowers of about 25 mm (1 in) diameter.
Doritaenopsis was a genus of artificial hybrids first formally described in 1935 by André Guillaumin in the Archives du Muséum national d'histoire naturelle.
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration.
Merodon equestris is a Holarctic species of hoverfly. Like many other hoverflies it displays a colouration pattern similar to a stinging insect as an evolutionary defense mechanism. Other syrphid bee mimics are Mallota, Arctophila, Criorhina, Pocota and Brachypalpus. Merodon species are distinguished from these by the very strong hind femora, which bear a large triangular projection on the underside near the tip. It flies in low vegetation while the other bumblebee mimics prefer higher vegetation layers.
Cheilea equestris is a species of small limpet-like sea snail, a marine gastropod mollusk in the family Hipponicidae, the hoof snails.
Scamaphis equestris is a species of mite in the family Eviphididae.
Cheilea is a genus of small limpet-like sea snails, marine gastropod mollusks in the family Hipponicidae, the hoof snails.
Psiloptera is a genus of beetles in the family Buprestidae, containing the following species:
Lygaeus equestris, common name Black-and-Red-bug, is a species of ground bugs belonging to the family Lygaeidae, subfamily Lygaeinae.
Ostrea equestris, commonly known as the crested oyster or horse oyster, is a species of bivalve mollusc in the family Ostreidae. It can be found along the Atlantic coast of North and South America, ranging from Virginia to Patagonia.
Griburius equestris is a species of case-bearing leaf beetle in the family Chrysomelidae. It is found in North America.
Anthocomus is a genus of beetles in the family Melyridae. The species of this genus are found in Europe and North America.
Allopogon is a genus of flies belonging to the family Asilidae.
Lygaeus simulans is a species of seed bug in the family Lygaeidae, found in the Palearctic.
