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Talpa (mammal)

From Wikipedia, the free encyclopedia

Talpa
Temporal range: Miocene to Recent[1]
European mole (Talpa europaea)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Eulipotyphla
Family: Talpidae
Tribe: Talpini
Genus: Talpa
Linnaeus, 1758
Type species
Talpa europaea[2]
Linnaeus, 1758
Species

See text

Talpa[3] is a genus in the mole family Talpidae. Among the first taxa in science,[4] Carolus Linnaeus used the Latin word for "mole", talpa, in his Regnum Animale to refer to the commonly known European form of mole. The group has since been expanded to include 13 extant species, found primarily in Europe and western Asia. The European mole, found throughout most of Europe, is a member of this genus, as are several species restricted to small ranges. One species, Père David's mole, is data deficient. These moles eat earthworms, insects, and other invertebrates found in the soil.

The females of this genus have rudimentary male features such as Cowper's glands and a two-lobed prostate. A group of scientists has suggested that they are true hermaphrodites;[5] however, others state that they are fully functional females.[6]

There are 14 species in this genus:

Gündüz, Demirtaş, Silsüpür, Özmen, Polly & Bilton, 2023 In addition, several extinct species are known from fossil remains, here the list:

  • Talpa tyrrhenica T. tyrrhenica
  • †Talpa fossilis Petenyi, 1864
  • †Talpa praeglacialis Kormos, 1930
  • †Talpa minor Freudenberg, 1914
  • †Talpa vallesensis Villalta & Crusafont, 1944
  • †Talpa episcopalis Kormos, 1930
  • †Talpa gilothi Storch, 1978
  • †Talpa minuta Blainville, 1840
  • †Talpa gracilis Kormos, 1930
  • †Talpa neagui Radulescu & Samson, 1989
  • †Talpa tenuidentata Ziegler, 1990
  • †Talpa sansaniensis Lartet, 1851

The current phylogeny of the species in the genus is shown below:

Phylogeny of the Eurasian moles according to Demırtaş et al. 2020 [9]

Talpa altaica

 Talpa ognevi

 Talpa caucasica

 Talpa talyschensis

 Talpa davidiana

 Talpa caeca

 Talpa stankovici

 Talpa levantis

 Talpa romana

 Talpa martinorum

 Talpa occidentalis

 Talpa aquitania

 Talpa europaea

YouTube Encyclopedic

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  • How big is a mole? (Not the animal, the other one.) - Daniel Dulek
  • Beginnings of Mammals
  • The Marsupial Mole's Tale
  • How do naked mole-rats choose their queen?
  • The Inner Beauty of Naked Mole Rats

Transcription

OK, today we're going to talk about the mole. Now, I know what you're thinking: "I know what a mole is, it's a small furry creature that digs holes in the ground and destroys gardens." And some of you might be thinking that it's a growth on your aunt's face with hairs sticking out of it. Well, in this case, a mole is a concept that we use in chemistry to count molecules, atoms, just about anything extremely small. Have you ever wondered how many atoms there are in the universe? Or in your body? Or even in a grain of sand? Scientists have wanted to answer that question, but how do you count something as small as an atom? Well, in 1811, someone had an idea that if you had equal volumes of gases, at the same temperature and pressure, they would contain an equal number of particles. His name was Lorenzo Romano Amedeo Carlo Avogadro. I wonder how long it took him to sign autographs. Unfortunately for Avogadro, most scientists didn't accept the idea of the atom, and there was no way to prove he was right. There was no clear difference between atoms and molecules. Most scientists looked at Avogadro's work as purely hypothetical, and didn't give it much thought. But it turned out he was right! By late 1860, Avogadro was proven correct, and his work helped lay the foundation for the atomic theory. Unfortunately, Avogadro died in 1856. Now the thing is that the amount of particles in even small samples is tremendous. For example, If you have a balloon of any gas at zero degrees Celcius, and at a pressure of one atmosphere, then you have precisely six hundred and two sextillion gas particles. That is, you have six with 23 zeros after it particles of gas in the container. Or in scientific notation, 6.02 times 10 to the 23rd particles. This example is a little misleading, because gases take up a lot of space due to the high kinetic energy of the gas particles, and it leaves you thinking atoms are bigger than they really are. Instead, think of water molecules. If you pour 18.01 grams of water into a glass, which is 18.01 milliliters, which is like three and a half teaspoons of water, you'll have 602 sextillion molecules of water. Since Lorenzo Romano - uh, never mind - Avogadro was the first one to come up with this idea, scientists named the number 6.02 times 10 to the 23rd after him. It is simply known as Avogadros's number. Now, back to the mole. Not that mole. This mole. Yep, this number has a second name. The mole. Chemists use the term mole to refer to the quantities that are at the magnitude of 602 sextillion. This is known as a molar quantity. Atoms and molecules are so small, that chemists have bundled them into groups called moles. Moles are hard for students to understand because they have a hard time picturing the size of a mole, or of 602 sextillion. It's just too big to wrap our brains around. Remember our 18.01 milliliters of water? Well, that's a mole of water. But how much is that? Exactly what does 602 sextillion look like? Maybe this'll help. Exchange the water particles for donuts. If you had a mole of donuts, they would cover the entire earth to a depth of eight kilometers, which is about five miles. You really need a lot of coffee for that. If you had a mole of basketballs, you could create a new planet the size of the earth. If you received a mole of pennies on the day you were born and spent a million dollars a second until the day you died at the age of 100, you would still have more than 99.99% of your money in the bank. OK. Now we sort of have an idea how large the mole is. So how do we use it? You might be surprised to know that chemists use it the same way you use pounds to buy grapes, deli meat, or eggs. When you go to the grocery store, you don't go to the deli counter and ask for 43 slices of salami, you buy your salami by the pound. When you buy your eggs, you buy a dozen eggs. When we hear the word dozen, we probably think of the number 12. We also know that a pair is two, a baker's dozen is 13, a gross is 144, and a ream of paper is - anybody? A ream is 500. Well, a mole is really the same thing. For a chemist, a mole conjures up the number 6.02 times 10 to the 23rd, not a fuzzy little animal. The only difference is that the other quantities are more familiar to us. So there you have it - the story of the mole, Avogadro, basketballs, and how to buy salami at the grocery store.

References

  1. ^ Benito, C.S.; Martinez, N.L. (1977). "El yacimiento de Escobosa de Calatanyazor (Soria) y su aportacion a la bioestratigraphia del Neogeno de la meseta castellana". In M.T. Alberdi and e. Aguirre (Eds) Round-table on Mastostratigraphy of the W. Mediterranean Neogene Trabajos Sobre Neogeno-Cuaternario. Madrid. 7: 35–40.
  2. ^ International Commission on Zoological Nomenclature (1922). "Opinion 75. Twenty-Seven Generic Names of Protozoa, Vermes, Pisces, Reptilia and Mammalia Included in the Official List of Zoological Names". Smithsonian Miscellaneous Collections. 73 (1): 35–37.
  3. ^ Hutterer, R. (2005). "Genus Talpa". In Wilson, D.E.; Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 307–309. ISBN 978-0-8018-8221-0. OCLC 62265494.
  4. ^ http://upload.wikimedia.org/wikipedia/commons/b/bb/Linnaeus_-_Regnum_Animale_%281735%29.png[bare URL image file]
  5. ^ Sánchez, A; Bullejos, M; Burgos, M; Hera, C; Stamatopoulos, C; Diaz De la Guardia R; Jiménez, R (1998-12-07). "Females of four mole species of genus Talpa (Insectivora, mammalia) are true hermaphrodites with ovotestes". Molecular Reproduction and Development. 44 (3): 289–294. doi:10.1002/(SICI)1098-2795(199607)44:3<289::AID-MRD2>3.0.CO;2-I. PMID 8858598. S2CID 20975321.
  6. ^ Beolchini, F; Rebecchi, L; Capanna, E; Bertolani, R (2000-06-01). "Female gonad of moles, genus Talpa (Insectivora, mammalia): ovary or ovotestis?". J Exp Zool. 286 (1): 745–54. doi:10.1002/(SICI)1097-010X(20000601)286:7<745::AID-JEZ9>3.0.CO;2-F. PMID 10797327.
  7. ^ Nicolas, Violaine; Martínez-Vargas, Jessica; Hugot, Jean-Pierre (2017). "Talpa aquitania sp. nov. (Talpidae, Soricomorpha), a new mole species from SW France and N Spain" (PDF). Mammalia. 81 (6): 641–642. doi:10.1515/MAMMALIA-2017-0057. S2CID 90926022.
  8. ^ "Two new types of mole unearthed in Turkey". BBC Newsround. 2023-08-11. Retrieved 2023-08-12.
  9. ^ Sadık Demırtaş, Metin Silsüpür, Jeremy B. Searle, David Bilton und İslam Gündüz: What should we call the Levant mole? Unravelling the systematics and demography of Talpa levantis Thomas, 1906 sensu lato (Mammalia: Talpidae). Mammalian Biology 100, 2020, S. 1–18, doi:10.1007/s42991-020-00010-4

External links

Media related to Talpa at Wikimedia Commons

This page was last edited on 15 November 2023, at 21:06
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