- Ecology and evolution of mammalian biodiversity - PMC
The greatest numbers of extant species (99%) are in the subclass Theria which consists of 5136 eutherian mammal species (i e placental species such as rodents, bats, carnivores, primates, cows, whales and elephants), and a smaller proportion (346 species) of metatherian species (i e marsupial mammals such as kangaroos and opossums)
- Researchers compared genomes of 240 different mammal species . . .
Researchers have examined the genomes of 240 mammal species The project reveals when mammals evolved, how some developed the ability to hibernate, and clues that may help explain humans' brains
- 2. 4: The Human Animal - Biology LibreTexts
Further, humans belong to the animal phylum known as chordates because we have a backbone The human animal has hair and milk glands, so we are placed in the class of mammals Within the mammal class, humans are placed in the primate order Figure \(\PageIndex{2}\): This taxonomic diagram shows how our species, Homo sapiens, is classified Our
- Review of Underwater and In-Air Sounds Emitted by Australian . . .
A total of 57 marine mammal species may be found around Australia, including 10 mysticetes (baleen whales), 36 odontocetes (toothed whales), one sirenian (dugong) and 10 pinnipeds (seals and sea lions) These species are listed in Table 1, also indicating whether they are most commonly encountered inshore versus offshore Many of the species
- Global distribution and conservation of marine mammals - PNAS
Black dots represent outlier species (B) Latitudinal trends in marine mammal species richness Note that, as with terrestrial mammals, species richness is greater with decreasing latitude However, in marine mammals the number of species is relatively similar from 30 ° N to 40 ° south, very different from the distribution of land mammal species
- Monogamy in Mammals | The Quarterly Review of Biology: Vol 52 . . .
This review considers the behavioral, ecological, and reproductive characteristics of mammals exhibiting monogamy, i e , mating exclusivity From a discussion of the life histories of selected species of monogamous primates, carnivores, rodents and ungulates, several trends emerge Two forms of monogramy occur, Type I, facultative, and Type II, obligate The selective pressures leading to
- How Many Species of Insects and Other Terrestrial Arthropods . . .
Taking the mean of most of these new estimates indicates that globally there are approximately 1 5 million, 5 5 million, and 7 million species of beetles, insects, and terrestrial arthropods, respectively Previous estimates of 30 million species or more based on the host specificity of insects to plants now seem extremely unlikely
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