Well, male ducks can't lay eggs. (there like humans, only the females can lay eggs) If by chance you meant does a male duck have to fertilize all eggs? No, they do not have to, only in the spring (which is baby season) will the male fertilize the eggs.
Hope that helps! :)
yes if there is no male peacock to breed them they will still lay eggs and set on them
No, female penguins do not lay unfertilized eggs. Penguins only lay eggs if they have mated with a male and the egg has been fertilized. The male and female penguin take turns incubating the egg until it hatches.
Yes, chickens lay unfertilized eggs.
Domestic birds such as chickens and geese lay unfertilized eggs, which people eat.
If an egg is unfertilized, then an embryo cannot form.Fertilized = an embryo can form.UNfertilized = an embryo cannot form, because the male (or lack thereof) did not contribute DNA to create life.
Chickens lay unfertilized eggs because they do not need a rooster to produce eggs. Hens have reproductive systems that allow them to lay eggs regularly, whether or not they have mated with a rooster.
Hornets lay eggs. The queen hornet will lay fertilized eggs that develop into female worker hornets, and unfertilized eggs that develop into male hornets. These eggs hatch into larvae that eventually pupate into adult hornets.
She may be producing eggs, however, frogs do not become pregnant. They will lay their unfertilized eggs whether a male is available or not.
when the seahorses are mating the female seahorse puts about 1500 eggs into the male seahorses pouch. The male seahorse carries the eggs for 4 to 45 days and then releases the seahorses into the water and leaves them.
Your goldfish isn't pregnant, its just becoming full of unfertilized eggs. Truthfully you shouldn't worry about it, unless you have a male around who is ready to spawn, the female will just lay her unfertilized eggs and then eat them.
Hens lay unfertilized eggs because they have a natural reproductive cycle that involves producing eggs regularly, regardless of whether they have been fertilized by a rooster.
No, Japalura Splendida female dragons require a male to fertilize their eggs. They reproduce sexually, so unfertilized eggs will not develop into offspring.