Ziminella vrijenhoeki

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Ziminella vrijenhoeki
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Heterobranchia
Family:
Paracoryphellidae
Genus:
Ziminella
Species:
Z. vrijenhoeki
Binomial name
Ziminella vrijenhoeki
Valdés, Lundsten & N. G. Wilson, 2018

Ziminella vrijenhoeki, is a species of sea slug, in the family Paracoryphellidae. [1] It was discovered at Monterey Canyon by MBARI researchers near a whale carcass 1000 meters below the surface, and was named after Robert Vrijenhoek, a MBARI evolutionary biologist. [2] It is bright orange, and grows about 20 millimeters long. [2]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

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Paracoryphellidae is a taxonomic family of brightly coloured sea slugs, specifically nudibranchs, marine gastropod mollusks.

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Victoria J. Orphan is a geobiologist at the California Institute of Technology who studies the interactions between marine microorganisms and their environment.

Hymenopenaeus doris, is a species of prawn in the family Solenoceridae, they live in the Eastern Pacific in areas like Mexico, Peru, and Costa Rica, from depths of 549–4802 meters deep. They play dead in order to not get eaten by predators, it drifts motionless while playing dead, having a name called "zombie shrimp", they might also be saving energy, since their depth has little oxygen, so creatures can't swim rapidly for long periods of time.

Aeolidia libitinaria is a species of sea slug in the family Aeolidiidae. It was found near a dead whale, inside the Monteray Canyon, 380 meters below the ocean surface, and was named libitinaria for it meaning undertaker in Latin.

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References

  1. ↑ "WoRMS - World Register of Marine Species - Ziminella vrijenhoeki Valdés, Lundsten & N. G. Wilson, 2018". marinespecies.org. Retrieved 2019-03-10.
  2. 1 2 Fulton-Bennett, Kim (2018-12-12). "Five new species of sea slugs found in the ocean depths". MBARI. Retrieved 2019-03-10.
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