No, there is no difference.
no they grow aggressive when there is a male in the breeding season
The male is far more aggressive than the female - they are large, and need to assert their dominance over their territory.
Both male and female emus have blue on their necks. It is impossible to tell the male and female apart by appearance alone.
running
Male hamsters tend to be less aggressive and protective than female hamsters.
If this is a reference to emus, both male and female emus have blue on their necks. It is impossible to tell the male and female apart by appearance alone.
First you select a male for your female; or female for your male. Put them in a room together, but if the female is aggressive or the male is it's best not to. When they want, they will breed and keep repeating until the female is pregnant.
It depends. Is the male becoming aggressive? If it is then something's wrong. Males are usually protective of the females and pups (depending on breed) so if it is acting aggressive towards the female then it will hurt the puppy's. Other male dogs will be fine around the pregnant female but become aggressive towards the pups. Do your research on the breed to determine what is the best way to protect not only the female and pups but the male because the female will attack the male if he try's to attack the puppy's.
A boy male
Male because it has testosterone which make it more agresive
It depends on which species you're asking about, and it depends on conditions. For humans, for example, in a random situation the male is statistically more aggressive, but in defense of hearth and home, the female is likely to be more aggressive.
Yes