Species Females

Some articles on species, female, species females, females:

Sexual Dimorphism - Examples - Species With Larger Females Than Males
... In some species such as insects, spiders, many fish, reptiles, birds of prey and certain mammals such as the spotted hyena, and blue whale, the female is larger than the male ... As an example, in some species females are sedentary and sparsely distributed, and so males must search for them ... Cases where the male is larger than the female have been studied as well, and require alternate explanations ...
Sexual Dimorphism - Evolution
... large number of small male gametes relative to the larger female gametes usually lies in the development of strong sperm competition, because small sperm ... mates, and promotes the evolution of other sexual dimorphism in many species, especially in vertebrates, including mammals ... However, in many species the females can also be larger than males, irrespective of gametes, and in some species females (usually of species in which males invest a lot in rearing ...

Famous quotes containing the words females and/or species:

    If combat means living in a ditch, females have biological problems staying in a ditch for 30 days because they get infections.... Males are biologically driven to go out and hunt giraffes.
    Newt Gingrich (b. 1943)

    Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man’s appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded.
    Abraham Lincoln (1809–1865)