One of the most fascinating aspects of human life is how we choose our mates. Animals also choose their mates, sometimes with a great deal of care. Mating systems are important to understand because they reflect the result of natural selection on mate ch
In Nature, the Mating Game Gone Haywire ; Wildlife Researchers Study Why Some Animals Seek out Other SpeciesResearchers have observed widespread aggressive sexual behaviorby marine mammals toward other...Chen, Ingfei
One may think that in animals, the mating practices may be pretty simple as it is dictated by nature. While the circle of mating in terms of when is definitely dictated by nature, how they mate can differ from one species to another. Let us look at some of the notable ways in which ...
The balance of power is dependent not only on the LOSR, however, but also on the production costs and exchange values of ‘crucial commodities’, which often vary locally and over time. Distinguishing LMMs is most useful for species with strong variation in the LOSR. Human mating markets ...
location not necessarily followed by a return journey;invasion orinterruption, both of which involve the appearance andsubsequentdisappearance of great numbers of animals at irregular times and locations; and range expansion, which tends to enlarge the distribution of a species, particularly its breeding...
Marsupial, any of more than 250 species belonging to the infraclass Metatheria (sometimes called Marsupialia), a mammalian group characterized by premature birth and continued development of the newborn while attached to the nipples in a pouch on the mot
There are about 50 million kangaroos living in Australia, that means there are many more kangaroos than people living in Australia! There are 55 different species of kangaroos. Kangaroo with joey Wallabies are usually smaller than kangaroos but kangaroos come in all sizes. Some weigh only little ...
The approximately over 7700 different species of reptiles that populate the earth today are unequally distributed across the earth. Only one species, the Squamata (scaled reptiles, snakes and lizards), is still expanding. Skin The relief on the skin, caused by the scales, is a major characterist...
Bear There are 8 different species! Beauty rat snake Beauty Rat Snakes are relatively harmless if left undisturbed, only attempting to bite out of fear. Bed Bugs Bed bugs feed for 4-12 minutes. Bee Rock paintings of bees date back 15,000 years Beetle There are more than 350,000 differen...
Yet sociality is found in only a few species of insects, and is rare among vertebrates as well: wildebeest (large antelope) and lions are the exception rather than the rule. Nearly all fish, amphibians, reptiles, birds, and mammals are solitary, except when courting and mating. Birds and ...