You can usually tell by the time they are about 4 months old just by observing their antics. Cockerels will "play fight" and be more aggressive than the hens. When startled, the hens will duck and crouch while the young males will go on alert and look up and around for the danger. There will be more vocalizations from the males also, while they may not be crowing yet they will make more noise than hens.
All clams start out as males first. Some decide to become females at some point in their lives.
women b/c they are crazy to start with
Kids start puberty in different ages. Males start at the age of 12-13. while females start at the age of 11-12
The signs of guppy breeding is when the males (the more colorful fish) start chasing the female guppies (the duller ones). The female guppies should appear to become fatter, signifying that the fish is pregnant.
Humans have nipples because they develop in the womb before the sex of the baby is determined. Both males and females start with nipples, but only females use them for breastfeeding.
The average age is 11-13 years in females. In males it si 12-15 years.
Sexual intercourse is a term that means the sexual contact between the males penis and females vagina. But its more likely to be defined as the the contact for having baby.
It does not matter how old they are the just have to be a certain lengths females have to be 360 cm and males have to be 420 cm.
Different rats act in different ways. The Bucks (or males) act in a calmer way. This is unless the males hormone levels increase. The Buck will start too become aggressive and mean. Does (females) are more active. They would want to shoulder surf and not lay in your lap and sleep, like the males. The males also drop a few drops of urine to mark their territory. Females don't typically do this. I hope this helps!
Generally you will notice a distinct quack from females at about 4 - 6 weeks of age, getting louder as they mature. The males do not quack.
Trichomoniasis can grow in males or females. It does not always start in women. However, it's easier to diagnose in women than in men.
Yes, they do. The eggs, however are externally fertilized. Meaning: The females and males release their eggs and sperm in open water for them to get fertilized