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The eiders (/ ˈ aɪ. d ər /) are large seaducks in the genus Somateria.The three extant species all breed in the cooler latitudes of the Northern Hemisphere. [2]The down feathers of eider ducks and some other ducks and geese, are used to fill pillows and quilts—they have given the name to the type of quilt known as an eiderdown.
Common eiders (Somateria mollissima) in the breeding season on Texel, the Netherlands. The common eider (pronounced / ˈ aɪ. d ər /) (Somateria mollissima), also called St. Cuthbert's duck or Cuddy's duck, is a large (50–71 cm (20–28 in) in body length) sea-duck that is distributed over the northern coasts of Europe, North America and eastern Siberia.
Since the first printing of Carl Linnaeus's Species Plantarum in 1753, plants have been assigned one epithet or name for their species and one name for their genus, a grouping of related species. [1] These scientific names have been catalogued in a variety of works, including Stearn's Dictionary of Plant Names for Gardeners .
A prefix meaning "two", e.g. bisulcate, having two sulci or grooves. biennial A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid
Iva annua is an annual herb up to 150 cm (5 feet) tall. The plant produces many small flower heads in a narrow, elongated, spike-like array, each head with 11–17 disc florets but no ray florets. [4]
Non-vascular plants , with their different evolutionary background, tend to have separate terminology. Although plant morphology (the external form) is integrated with plant anatomy (the internal form), the former became the basis of the taxonomic description of plants that exists today, due to the few tools required to observe. [2] [3]
A group of female eider ducks and several ducklings In zoology , a crèche (from a French term for childcare ) is an animal behaviour where offspring are cared for as a group by multiple females. [ 1 ] [ 2 ] Many species such as common eiders , [ 1 ] lions , [ 2 ] and penguins [ 3 ] form crèches and exhibit group behaviours.
The king eider (pronounced / ˈ aɪ. d ər /) (Somateria spectabilis) is a large sea duck that breeds along Northern Hemisphere Arctic coasts of northeast Europe, North America and Asia. The birds spend most of the year in coastal marine ecosystems at high latitudes, and migrate to Arctic tundra to breed in June and July.