Do all animals have eggs?

Birds and fish are not the only animals that lay eggs. Insects, turtles, lizards, and reptiles lay eggs, too. Only two mammals lay eggs: the platypus and the echidna. All other mammals give birth to live babies.

Does frog lay egg?

Most frogs and toads begin life as eggs floating in the water. A female may release up to 30,000 eggs at once. Each species of toad and frog lays eggs at different times.

Why do frog lay so many eggs in water?

Ans. Therefore, frog lays its eggs in water to prevent them from getting dried up. Another reason behind frogs to lay their eggs in water is that the young tadpoles that come out after hatching have gills as the only breathing organ that requires them to swim under water to breathe.

Why do frog lay many eggs?

Frogs laid so many eggs in water to make sure that enough eggs reach to the morality & adulthood . because they are lowers in food chain & also have so may enemies in water & on land also . So to ensure for new generation they laid high number of eggs .

How many eggs frog lays?

Common toad: 3,000 – 6,000

Why do female frog lay hundreds of eggs?

As in external fertilization eggs are released in the surrounding for getting fertilized there are high changes of destruction of eggs by natural processes or by predators. For this reason female frogs lay hundreds of eggs at a time. More number of eggs means more chances to get fertilized.

Why do animals lay many eggs?

The reason that some animals lay eggs is because that is more beneficial to them than than it is to give birth to a live offspring. Millions of years ago, every animal laid eggs, and slowly, they evolved to give birth to live babies based on what would help them survive best.

Which animals lay eggs are born alive?

Many animal groups have some species that lay eggs and others that birth live young, including fish, amphibians, and yes, even mammals, says Whit Gibbons, evolutionary biologist at the University of Georgia’s Savannah River Ecology Laboratory. (See “What Comes Before Snake Sex?

What animal lays a lot of eggs?

Insects are no slouches when it comes to reproduction and the African driver ant, which can produce 3 to 4 million eggs every 25 days, is thought to be the most generous of all. Finally, North America’s gray partridge lays one of the largest clutches of eggs among birds, up to 22 eggs, with an average of 16 to 18.

Which animals lay eggs during birth?

Summary. Animals such as human beings, cows and dogs which give birth to young ones are called viviparous animals. Animals such as hen, frog, lizard and butterfly which lay eggs are called oviparous animals.

Which animal group has most live births?

Mammals

Do animals feel pain during childbirth?

But while they may keep their pain more private, it’s known that many animals show some signs of pain and distress. During labor, horses sometimes sweat, llamas and alpacas bellow or hum in a way similar to when they are injured, and many animals become more aggressive.

What animal has the most teeth in the world?

Snails