![]() Only five species of animals share this extraordinary egg-laying trait: the duck-billed platypus, and four echidna species, the western long-beaked echidna, eastern long-beaked echidna, short-beaked echidna, and Sir David’s long-beaked echidna. If a snake does not lay eggs it is either viviparous or ovoviviparous. When it is time to hatch, hatchlings will use their egg tooth to break through the shell. Rigid shells are generally harder, but most snakes lay pliable shells. Others provide care for the young for some period of time these females live one or, at most, two years. Females of many species die after producing the last egg sac. Do spiders lay eggs?įemale spiders produce either one egg sac containing several to a thousand eggs or several egg sacs each with successively fewer eggs. Bats are considered one of the slowest reproducing animals in the world and female bats often only produce one offspring per year. Like other mammals, bats give birth to their pups and nurse them with milk from their bodies. Do bats lay eggs?īats do not lay eggs because they are mammals. Other characteristics of dolphins that make them mammals rather than fish are that they give birth to live young rather than laying eggs and they feed their young with milk. The only two mammals that lay eggs are the platypus and the echidna, which has spines similar to that of a porcupine. Like most mammals, porcupines give birth to live young and do not lay eggs. Recent post: Can I Go To University Without Finishing High School Australia? Do porcupines lay eggs? ![]() The eggs are fertilized and hatch within the female. Livebearers give birth to fully formed and functional young called fry. Do fish lay eggs?įish reproduce by bearing live young or by laying eggs. Each species of toad and frog lays eggs at different times. A female may release up to 30,000 eggs at once. Most frogs and toads begin life as eggs floating in the water. The remainder are oviparous, meaning they lay eggs. ![]() There are over 500 species of shark living in waters around the world and the majority give birth to live young. These help to protect and provide for offspring as they develop. Do sharks lay eggs?Ī huge variety of animals produce eggs. Because whales are marine mammals, the females carry the offspring in their wombs and have live births! However, since whales are fully aquatic mammals, how whales give births is much different than the births of terrestrial and semi-aquatic animals. Do whales lay eggs?ĭo whales lay eggs? The answer is no. They shed an egg from their ovary and it drifts down the fallopian tube where, if it meets up with sperm, the egg is fertilized and then embeds itself in the wall of it’s mother’s uterus. Kangaroo females get pregnant in the regular way. Only two mammals lay eggs: the platypus and the echidna. Insects, turtles, lizards, and reptiles lay eggs, too. Recent post: What Is A Tier 1 Employee? What animals lay eggs but not a bird?īirds and fish are not the only animals that lay eggs.
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