Apparently its because males tracheas or larynxes or something in the throat is opened wider than females and it also depends on how the air comes out of your throat. if you want more info go to this website: http://en.wikipedia.org/wiki/Vocals
Preference for deep voices can vary among individuals, but generally, some girls may find deep voices attractive in boys as they can perceive them as confident and masculine. However, it's important to remember that personal preferences and attraction go beyond just physical traits like voice pitch.
That's just physics for you. Higher pitch means higher frequency means more vibrations for one unit of time. To create a higher pitch sound, the source of that sound has to vibrate more often.
Male cones are smaller, do not open, and are located on the lower part of the tree. Females are the opposite; big, open, and located higher on the tree.
In an adult male it can be as much as 60% by weight. In females the proportion is lower.
Male cheetahs are generally larger than females.
females
No. Male platypuses do not have darker fur than females.
Male parakeets cannot lay eggs--only females can.
A male can get herpes from a female.
Male. But it is the females that bite you.
Transsexuals can be male OR female.
Male ones...