5 Name of Mammals that Lay Egg

Can Mammals Lay Eggs? What are the Mammals that can Lay Eggs? How many are they?
name of mammals that lay egg

Mammals are the group of animals that give birth to their children inside the mother’s womb. But can mammals lay eggs? Interestingly, a few mammals give birth by laying eggs and not inside the womb. So, how many mammals lay eggs? The name of mammals that lay eggs may not be known to many. Continue reading to know the name of mammals that lay eggs.

How Many Mammals Lay Eggs?

Can mammals lay eggs? Yes, they can. There are three types of mammals based on the way of giving birth and they are monotreme, placentals, and marsupials. (See How to Describe Crocodile?)

  • The mammals that lay eggs and feed their baby with milk are the monotreme. There are other two kinds among the name of mammals that lay eggs. They are duck-billed platypus and echidna.
  • The rest of the two types are called placentals and marsupials. Their reproduction procedure is live birth, carrying the baby in the mother’s womb. (Also read What Animal has the Longest Pregnancy?)

In the name of mammals that lay eggs, echidna typically has four species that lay eggs or are monotreme along with duck-billed platypus. These species are listed below.

  • Western Long-beaked Echidna,
  • Easter Long-beaked Echidna,
  • Short Beaked Echidna,
  • Sir David’s Long-beaked Echidna.

Name of Mammals that Lay Egg

1. Duck-billed Platypus

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This intriguing species may be spotted throughout Tasmania and Australia with its distinctive duck-like bill. (See Do Bees Have Ears?)

  • Its body is streamlined, which permits them to move fluidly underwater, where they spend most of its time.
  • They can manufacture venom from the spikes on their feet, which is unusual. It may injure smaller animals, but it will not affect humans. 
  • Platypuses eat small aquatic invertebrates and use their incredibly sensitive snouts to locate them.
  • They frequently move along the riverbed’s bottom, digging through the mud for food.
  • At the age of two, these creatures are sexually mature, and they frequently have multiple partners throughout their lives.
  • Once the female is willing to lay eggs, she retreats to an isolated habitat to wait it out. She usually only lays one to three eggs at a time.
  • When a newborn platypus, referred to as a puggle, is born, it is hairless and roughly the size of a human hand. (See what are baby platypus called?)
  • It will nurse inside a protective pouch with its mother for the next few months before being relocated to a tunnel as it grows and matures. The infant is prepared to learn to swim by the time it is four or five months old.

2. Western Long-beaked Echidna

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The western long-beaked echidna, scientifically called the Zaglossus bruijni, is a rare New Guinean animal.

  • They are the monotremes’ heaviest members, weighing over 40 pounds.
  • Even though these creatures tend to be usually submissive, they would instead roll up into a small ball to defend themself than indulge in combat. (Also read Do Anteaters Eat Ants?)
  • Their breeding season lasts about a month, mostly in summer, and a female echidna usually has one offspring.
  • Unfortunately, illicit hunting and ecological damage have resulted in a population reduction. The western long-beaked echidna has been currently classified as a species threatened with extinction

3. Easter Long-beaked Echidna

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The mating mechanism and breeding habits of Eastern long-beaked echidnas remain poorly understood.

  • Their reproduction season is considered to take place around April and May. Eastern long-beaked echidnas fall pregnant to one infant echidna or puggle, as discovered through the native people’s reports.
  • Female echidnas deposit eggs that release a baby in around 10 days.
  • Puggles remain in the female’s pouches for 6 to 7 weeks before their spines develop. After about seven months, the young ones became trained.
  • They can be found in main and secondary habitats, from tropical hill forests to sub-alpine forests, upland meadows, and scrub.
  • These are primarily nocturnal, sleeping in underground bunkers or vacuous logs throughout the day. (See How Fast Are Crocodiles on Land?)

4. Short Beaked Echidna

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Short-beaked echidnas are typically polygynous, and during the breeding season, a train of males might accompany a single female in the hopes of mating with her.

  • Copulation usually takes place from June to August.
  • After a 23-day pregnancy period, the mother would release a solitary soft-shelled egg in her pouch for incubating. The egg emerges after approximately 10 days, and the infant echidna, known as a puggle, is around 1.5 cm (0.6 inches) long.
  • The puggle remains inside its mother’s bag till the development of its spines, which takes around 3 months. When the puggles seem to be mature enough, their mother will abandon them in a postpartum burrow while she goes out to eat.
  • Puggles tend to get nursing treatment from their mothers until they are roughly 7 months old when they are withdrawn. (See 4 No Stripe Zebra Facts)

5. Sir David’s Long-beaked Echidna

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Sir David’s long-beaked echidnas weigh 2–3 kg, the smallest echidna species. The rostrum of this echidna is around 70 mm long and slightly stiffer than that of other echidna species.

  • They resemble short-beaked echidnas due to their short rostrum and small stature.
  • Since only one specimen has been discovered so far, so very little has been documented about Zaglossus attenboroughi’s breeding or mating activities.
  • The way these animals reproduce and if at all they are promiscuous is yet to be discovered.
  • The mating behavior of this species is considered to be similar to that of other Zaglossus species.
  • The proportion of offspring produced during a breeding cycle and the pregnancy duration and reproductive maturity age is uncertain. (See 12 Catfish Whiskers Facts)

So, these were the handful of the name of mammals that lay eggs, and most importantly, they are much more endangered or rather on the verge of extinction. (Also read Do Sheep Sleep?)

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