There are only two mammals that are oviparous; the platypus and four species of echidnas. Birds, reptiles and insects lay eggs. Family ... 2.Long-beaked Echidna. Animal Trivia Questions – What are the only two mammals that lay eggs? The platypus, the short-beaked echidna, and the three species of long-beaked echidna (Western, Eastern and Sir David … The egg incubates (develops) in the mother's pouch for 10 to11 days before the baby hatches. Class : Mammalia. When a baby echidna hatches, it is less than half-an-inch long, completely naked and helpless. CodyCross is an addictive game developed by Fanatee. Monotremes are the only mammals that lay eggs. All of the extant species of monotremes are quite involved parents. Those are the only extant monotremes today, if you went back a hundred million years … 1.Duck-billed Platypus. The platypus is a semi-aquatic mammal native to Australia (including Tasmania) and Papua New Guinea. Egg-laying mammals generally hatch within just 10 days of being laid – a much shorter time than that of similarly-sized egg-layers. Typically, echidnas breed between July and August. But here is a complete list of animals which lay eggs. Kingdom : Animalia. It just looks like it! Along with four species of echidna (a mammal that looks a bit like a porcupine), the platypus is one of only five species of monotremes in the world. One mammal which lays eggs is the platypus; another is the long beaked echidna; the third is the short-beaked echidna. It is a normal thing for mammals to not lay eggs, but it is a rare and unique case when they do lay egg. The mammals that lay eggs are Platypuses (no, not platypi, platypuses) and echidnas. Mammals That Reproduce By Laying Eggs. The only mammals which lay eggs are monotremes, and this group includes just the platypus and the echidna. Long-beaked echidnas are known as monotremes?a small and primitive order of mammals that lay eggs rather than give birth to live young. Egg-laying mammals generally hatch within just 10 days of being laid – a much shorter time than that of similarly-sized egg-layers. These echidnas can live for more than 50 years in captivity. How Do Egg-Laying Mammals Raise Their Young? The eggs are retained for quite a long time, absorbing nutrients from the mother. It remains in the pouch for six to eight weeks, sucking the thick, yellowish milk known as "pap" from the mother's mammary glands. Practically, their mating is quite unusual because the males have four-headed penises while the females have two-branch reproductive tract. Oviparous animals are animals that lay eggs. We are sharing ...Continue reading ‘Mammal that lays eggs Answers’ » There are three species of mammals that lay eggs: the Platypus and two species of echidna, the long-beaked echidna of New Guinea and the short-beaked echidna of Australia. Fertilization is either internal or external but the eggs hatch in an external environment and not in the mother's womb. Subphylum : Vertebrata. Most mammals do not lay eggs. The eggs are retained for quite a long time, absorbing nutrients from the mother. Along with four species of echidna (a mammal that looks a bit like a porcupine), the platypus is one of only five species of monotremes in the world. Mammal that lays eggs Answers. Short-beaked echidnas are popular with zoos, since they are the only representative of egg-laying mammals established in captivity. Echidnas have very poor eyesight, but they more than make up for this with excellent hearing. Monotremes are mammals that lay eggs instead of giving birth to live young. This is not their only difference, however, and their existence goes to show how fascinating and diverse nature can be. Crossword Puzzle solution ⇒ A MAMMAL THAT LAYS EGGS on crosswordsolver.com All Crossword Puzzle Answers for A MAMMAL THAT LAYS EGGS clear & sortable. Some people stereotype egg laying animals to birds only. Monotremes are mammals that lay eggs instead of giving birth to live young.