Like most birds it is possible for penguins to lay unfertilized eggs but it doesn't happen very often.
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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.
Penguins are birds. They have feathers and lay eggs.
in the ground
No, Japalura Splendida female dragons require a male to fertilize their eggs. They reproduce sexually, so unfertilized eggs will not develop into offspring.
Rockhopper penguins typically lay two eggs at a time, but usually only one chick survives to adulthood as the parents may not be able to provide enough food for both chicks.
Eggs don´t lay eggs. Some animals do lay unfertilized eggs though, many insect species are capable of it. Unfertilized eggs will become males most of the time, so if there are only females and eggs don´t get fertilized, males will enter the population automatically and the genetic diversity will go up once more.