请问鸭嘴兽是胎生还是卵生是哺乳动物吗？鸭嘴

　　请问鸭嘴兽是胎生还是卵生是哺乳动物吗？鸭嘴兽是胎生还是卵生「专家回答」

　　据和记百科网站「無知の愛」消息，近日，请问鸭嘴兽是胎生还是卵生是哺乳动物吗？鸭嘴兽是胎生还是卵生「专家回答」引发热议，鸭嘴兽是胎生还是卵生是哺乳动物吗同样引起许多争议，对此众网友各抒己见。但到底是怎么回事呢？和记百科为您解答。

鸭嘴兽是胎生还是卵生

　　鸭嘴兽是卵生。鸭嘴兽为哺乳动物，虽然母体也分泌乳汁哺育幼仔成长，但却不是胎生而是卵生。即由母体产卵，像鸟类一样靠母体的温度孵化。母体没有乳房和乳头，在腹部两侧分泌乳汁，幼仔就伏在母兽腹部上舔食。鸭嘴兽是最原始的哺乳动物之一，它是未完全进化的哺乳动物，种类极少，同属之中只有鸭嘴兽一种动物，也是最低等的哺乳动物之一。

　　鸭嘴兽生物特征：

　　鸭嘴兽全身裹着柔软褐色的浓密短毛，脑颅与针鼹相比，较小，大脑呈半球状，光滑无回。四肢很短，五趾具钩爪，趾间有薄膜似的蹼，酷似鸭足，在行走或挖掘时，蹼反方向褶于掌部。它通身长满柔软的皮毛，像一层上好的防水衣，嘴巴极宽扁，像面具一样装在脑袋上，形似鸭嘴，质地柔软，似皮革一般，上面布满神经，能像雷达扫描器一般，接受其它动物发出的电波。鸭嘴兽仗着这一利器，在水中寻找食物和辨明方向。嘴内有宽的角质牙龈，但没有牙齿，尾大而扁平，占体长的1/4，在水里游泳时起着舵的作用。

鸭嘴兽是胎生还是卵生是哺乳动物吗

　　答：卵生。鸭嘴兽是卵生的。虽然鸭嘴兽是一种哺乳动物，母体也能分泌出乳汁哺育幼崽成长，但却不是胎生而是卵生，即由母体产卵，像鸟类一样靠母体的温度孵化，所以鸭嘴兽是卵生的。

　　【英文介绍/For English】：

　　Platypus is oviparous. The platypus is a mammal. Although the mother also secretes milk to feed the young, it is not viviparous but oviparous. That is, the eggs are laid by the mother and hatched by the temperature of the mother like birds. The mother has no breasts and nipples, and produces milk on both sides of the abdomen, and the cubs lie on the mothers abdomen and lick. The platypus is one of the most primitive mammals. It is an incompletely evolved mammal with very few species. There is only one animal in the same genus, and it is also one of the lowest mammals.

　　Platypus biological characteristics:

　　The whole body of the platypus is covered in soft brown and dense short hair. Compared with the echidna, the brain is smaller, and the brain is hemispherical and smooth without back. The limbs are very short, the five toes have hook claws, and there are membrane-like webs between the toes, which resemble duck feet. When walking or digging, the webs are folded in the opposite direction on the palm. It is covered with soft fur, like a good waterproof coat. Its mouth is very wide and flat, and it is mounted on its head like a mask. It is shaped like a ducks bill, and its texture is soft, like leather. It is covered with nerves, which can scan like a radar. Generally, it accepts radio waves from other animals. Platypus relies on this weapon to find food and identify directions in the water. The mouth has wide horny gums, but no teeth, and the tail is large and flat, accounting for 1/4 of the body length, and it acts as a rudder when swimming in the water.