All mammals give birth to young ones, except platypus and echidna as they are egg-laying mammals. Lizards, on the other hand, are oviparous i.e., they lay eggs and they don't give birth to young ones.
So, the correct answer is 'Mammals'.
Mammals. As for us mammals, only two types lay eggs: the duck-billed platypus and the echidna. After a three-week pregnancy, the short-beaked echidna of Australia makes a nursery burrow, where she lays her egg directly into her pouch, incubating it for ten days until it hatches into a baby.
It is not only humans and mammals that give birth. Some reptiles, amphibians, fish and invertebrates carry their developing young inside them. Some of these are ovoviviparous, with the eggs being hatched inside the mother's body, and others are viviparous, with the embryo developing inside her body, as in mammals. Q.
The platypus is a monotreme--a group where the females produce offspring by laying eggs. Giving birth this way is extremely unusual among living mammals--but normal for most other animals.
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.
Like other marsupials, wombats give birth to a tiny, underdeveloped baby that crawls into its mother's pouch to grow and develop further.
Creatures big and small
Most animals that procreate through parthenogenesis are small invertebrates such as bees, wasps, ants, and aphids, which can alternate between sexual and asexual reproduction. Parthenogenesis has been observed in more than 80 vertebrate species, about half of which are fish or lizards.
Many sharks are viviparous, meaning they give birth to live young. Like all sharks, species such as blue, bull, and hammerhead sharks rely at first on a yolk sac for nutrition. But they also develop a placental connection similar to a mammal's umbilical cord.
There have been earlier incidents when animals have given birth to human-like offspring but this one will freak the bejesus out of you. In an unusual incident, a goat birthed a human-like offspring in Assam's Cachar district. The people of the area are shocked at the newborn's appearance.
Seahorses and their close relatives, sea dragons, are the only species in which the male gets pregnant and gives birth. Male seahorses and sea dragons get pregnant and bear young—a unique adaptation in the animal kingdom. Seahorses are members of the pipefish family.
A single female typically lays a clutch of between 30 and 60 eggs that incubate for 80 and 90 days. Temperatures of the nest during a period of incubation determine the sex of the hatchling crocodiles.
While most mammals also require a break between pregnancies, either to support new young or during periods of seasonal lack of resources, the female swamp wallaby is the only one that can claim the reproductive feat of being permanently pregnant throughout its life.
The Australian three-toed skink (Saiphos equalis) is doubly remarkable: Not only can it both lay eggs and bear live young, but it can do both within a single litter of offspring.
There are over 500 species of shark living in waters around the world and the majority give birth to live young. The remainder are oviparous, meaning they lay eggs.
As far as we know, all dinosaurs reproduced by laying eggs, as do most other sauropsids (reptiles).
Snakes have two different ways of producing young, either by laying eggs or live birth. The snakes that have live birth do not carry their babies in the womb like mammals; rather, they grow their babies inside of their bodies as if they were in eggs.
All whales and dolphins are mammals. This means that like us, they are born during a live birth. Baby whales also drink milk and are born with hair too.
Fish have similar reproductive organs as humans, except they are not external. The female will lay the eggs and they will be dispersed through the water where the male will fertilize them. But some fish engage in a form of intercourse or a mating ritual.
Animals do not have genders. And although this statement is universally accepted by those who study and theorize about gender, there is a lot of confusion about it among those who do not. The confusion stems from the fact that males and females of many species systematically behave in different ways.
Also knows as Platypus frogs, the female amphibian, after external fertilization by the male, would swallow its eggs, brood its young in its stomach and gave birth through its mouth.
Many species of fish, like the kobudai, are known as “sequential hermaphrodites”: they can switch sex permanently at a specific point in their lives. The majority of “sequential hermaphrodites” are known as “protogynous” (Greek for “female first”): they switch from female to male.
The female platypus lays her eggs in an underground burrow that she digs near the water's edge. Baby platypuses hatch after 10 days and nurse for up to four months before they swim off and forage on their own.
Wombats are very clean animals and do not enjoy a dirty home. Strong smelling objects, such as blood-and-bone fertiliser or dog faeces placed in and around the burrow can be an effective deterrent.
Though wombats may start out friendly, they're wild animals, and quickly become standoffish and even aggressive towards humans. No matter how much you might want to cuddle a wombat, it does not want to cuddle you back.