The female would obviously be a freemartin if she had shared the placenta with her brother, and her brother would simply be known as a bull calf.
Cleo's twins were named Cleopatra Selene and Alexander Helios. there was one of each --- a male and a female.
The occurrence of twins is determined by the female, specifically by her genetics and ovulation process.
Twins in Portuguese is "gêmeos" for male twins or mixed-gender twins, and "gêmeas" for female twins.
a male duck:drake. a female duck:duck
By putting the female an Put the male or female on top of eachother
Female is called a Duck. Male=Drake
Yes
Yes they are
With mink, the male is a 'boar' and the female is a 'sow'.
Just male and female although some people call them sire and dam, but this is not widely accepted.
Mare is an adult female.
Yes they are.