Female birds turn the end of the oviduct inside-out to lay an egg and allow the egg to emerge. A bird currently laying an egg can be identified by a rhythmic moving and opening and closing of the bill, though time varies... More »

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Female love birds will lay eggs with or without a presence of a male but without male intervention, the eggs will be unfertilized and cannot hatch. To successfully breed love birds, make sure the pair is healthy, normal,... More »

The nesting method used by birds depends upon their size, location and diet. It also depends on the available nesting materials and the reproductive habits of the given bird species. Some do not build nests at all, but t... More »

Animals that lay eggs are known as oviparous animals and include fish, birds, reptiles and insects. These types of animals have little to no other development within the mother. Mammals that lay eggs instead of giving bi... More »

All birds lay eggs; of the 9,000 species of birds, none of them give live birth. Instead, birds form and lay eggs that are incubated outside the body. Eggs range in size depending on the bird and can be as small as 0.2 g... More »

In the United States, frogs normally lay eggs in the spring. In warmer climates, such as Australia, frogs lay eggs more often. In North America, during spring months, the female frog releases her eggs into the water. The... More »

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Around 30 percent of shark species lay eggs, including the whitespotted bamboo shark. Other sharks that lay eggs are the horn shark, the Port Jackson shark and the swellshark. More »