Vulpes macrotis (desert kit fox) (49673064348)
![Sivun meksikonaavikkokettu kuva](https://content.eol.org/data/media/f3/a7/3a/509.013f66cde8875416f9045849fc580435.580x360.jpg)
Kuvaus:
Description: Vulpes macrotis (Merriam, 1888) - desert kit fox (mount, Valley of Fire State Park visitor center, Nevada, USA) Mammals are the dominant group of terrestrial vertebrates on Earth today. The group is defined based on a combination of features: endothermic (= warm-blooded), air-breathing, body hair, mother's milk, four-chambered heart, large brain-to-body mass ratio, two teeth generations, differentiated dentition, and a single lower jawbone. Almost all modern mammals have live birth - exceptions are the duck-billed platypus and the echidna, both of which lay eggs. Mammals first appear in the Triassic fossil record - they evolved from the therapsids (mammal-like reptiles). Mammals were mostly small and a minor component of terrestrial ecosystems during the Mesozoic. After the Cretaceous-Tertiary mass extinction at 65 million years ago, the mammals underwent a significant adaptive radiation - most modern mammal groups first appeared during this radiation in the early Cenozoic (Paleocene and Eocene). Three groups of mammals exist in the Holocene - placentals, marsupials, and monotremes. Other groups, now extinct, were present during the Mesozoic. The desert kit fox is native to much of southwestern America, Baja California, and parts of northern Mexico. Date: 6 July 2010, 11:41. Source: Vulpes macrotis (desert kit fox). Author: James St. John.
Mukana seuraavilla sivuilla:
- Life
- Cellular
- Eukaryota (aitotumaiset)
- Opisthokonta
- Metazoa
- Bilateria (Kaksikylkiset)
- Deuterostomia (Jälkisuiset)
- Chordata (Selkäjänteiset)
- Vertebrata (selkärankaiset)
- Gnathostomata (leualliset selkärankaiset)
- Osteichthyes (luukalat)
- Sarcopterygii (Varsieväiset kalat)
- Tetrapoda
- Amniota
- Synapsida (Synapsidit)
- Therapsida
- Cynodontia (Kynodontit)
- Mammalia (nisäkkäät)
- Theria (Synnyttävät nisäkkäät)
- Eutheria
- Placentalia
- Boreoeutheria
- Laurasiatheria
- Scrotifera
- Carnivora (petoeläimet)
- Caniformia
- Canidae (koiraeläimet)
- Vulpes (ketut)
- Vulpes macrotis (meksikonaavikkokettu)
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- James St. John|sourceurl=https://flickr.com/photos/47445767@N05/49673064348%7Carchive=%7Creviewdate=2020-04-14 18:31:23|reviewlicense=cc-by-2.0|reviewer=FlickreviewR 2
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