Search results
Results from the WOW.Com Content Network
An example of species that exhibit male-male aggression under polygynous system is Allobates femoralis. Physical aggression can be induced by territorial defense and competition in courtship. [ 13 ] Especially, during the courtship march, a competing male can intercept the female while the male who originally courted the female searches for an ...
Polygynandry is a mating system in which both males and females have multiple mating partners during a breeding season. [1] In sexually reproducing diploid animals, different mating strategies are employed by males and females, because the cost of gamete production is lower for males than it is for females. [2]
In polygyny relationships in animals, the female is the one who provides most of the parental care for the offspring. [ 169 ] Polygyny in eusocial insects means that some insects living in colonies have not only one queen, but several queens. [ 167 ]
The green turtles is an example of a species that does not receive any possible benefit from polyandry and only uses it to reduce the cost of mating. [19] As for house mice, multiple male mating was observed even when females had the opportunity to select their mate without sexual coercion, showing that it was due to female choice. [18]
Polygyny is associated with an increased sharing of subsistence provided by women. This is consistent with the theory that if women raise the children alone, men can concentrate on the mating effort. Polygyny is also associated with greater environmental variability in the form of variability of rainfall. This may increase the differences in ...
Mule, a cross of female horse and a male donkey. Hinny, a cross between a female donkey and a male horse. Mules and hinnies are examples of reciprocal hybrids. Kunga, a cross between a donkey and a Syrian wild ass. Zebroids. Zeedonk or zonkey, a zebra/donkey cross. Zorse, a zebra/horse cross
Polygyny threshold model graph. The polygyny threshold model is an evolutionary explanation of polygyny, the mating of one male of a species with more than one female. The model shows how females may gain a higher level of biological fitness by mating with a male who already has a mate. The female makes this choice despite other surrounding ...
For example, in many baboons and macaques, the size of male canines is more than twice as large as that of female canines. It is rare, yet females in some species are known to have larger canines than males, such as the eastern brown mouse lemur (Microcebus rufus). Sexual dimorphism in canine tooth size is relatively weak or absent in extant ...