What mammals lay eggs instead of birth?

What mammals lay eggs instead of birth?

The platypus is one of only five species of monotremes in the world. These are mammals that lay eggs instead of giving birth to live young.

Why are they called egg-laying mammals?

The platypus, found only in Australia is one of the five mammal species of that lay eggs instead of giving birth to live young. The reason that odd, egg-laying mammals still exist today may be because their ancestors took to the water, scientists now suggest.

Which type of mammal lays eggs quizlet?

Monotremes are a group of mammals that form the order Monotremata. Monotremes are the only mammals that lay eggs, but they also feed their babies with milk. The word ‘monotreme’ refers to their common rear opening, the cloaca.

Do mammals feel pain during childbirth?

Most nonhuman mammals tend to hide while giving birth, presumably to avoid attracting predators during their time of highest vulnerability. But while they may keep their pain more private, it’s known that many animals show some signs of pain and distress.

What mammal is not born alive?

There are only five living monotreme species: the duck-billed platypus and four species of echidna (also known as spiny anteaters). All of them are found only in Australia and New Guinea. Monotremes are not a very diverse group today, and there has not been much fossil information known until rather recently.

Are platypuses poisonous?

Don’t be fooled by the playful-looking duck’s bill — platypuses deliver a venom containing more than 80 different toxins. The platypus — a semi-aquatic egg-laying mammal found in Australia — is one of few mammals to make venom, which males produce in abdominal venom glands and deliver through spurs on their hind legs.

Which of the following characteristics truly distinguishes a mammal?

According to the University of Michigan Museum of Zoology, there are only three characteristics unique to mammals. The three characteristics are mammary glands, hair and three middle ear bones. Other characteristics often thought to be unique to mammals are found in other species including birds, insects and reptiles.

Do animals cry when giving birth?

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.

Do cats feel pain when giving birth?

Active Labor Signs: Contractions—the uterine movements that move the kitten down the birth canal—may make your cat yowl through the pain. You may also see a discharge of blood or other fluids.

What type of animal lays the most eggs?

20 Best Egg Laying Chicken Breeds That Will Lay Lots of Eggs for You (Up To 300 Per Year) Golden Laced Wya​ndotte. This breed of chicken is notable for high productivity and charming appearance; besides, it is well known for its easy going disposition and very common within Isa Brown. This is yet, another charming breed of chicken regarded as a prolific egg layer and ranked very high as a family friendly chicken. Rhodes Island Red.

What are the names of animals that lay eggs?

Some of the animals known to lay eggs include birds like the ostrich, humming bird, eagle, the king fisher , reptiles like the crocodile, turtles, Iguana Lizard and other lizards, fishes like Siamese Fighters, Piranhas, and chichlids. Most species of fish, amphibians, all birds, reptiles and most insects and arachnids lay eggs.

What do animals do lay egg the most?

There are seven chicken breeds that are high egg-laying breeds- hens that lay over 300 eggs in a year. Golden Comet, Lohmann Brown, Leghorn, Ancona, Australorp, Rhode Island Red, and Black Star breeds, and hybrids are the highest egg producers in the poultry world.

What do animals do not lay eggs?

Animals which reproduce by laying eggs are called oviparous animals. Birds, insects, reptiles and fishes are oviparous animals. Animals which reproduce by giving birth to their young ones are called viviparous animals. These animals do not lay eggs. Mammals like cat, dog and man are viviparous animals.

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