Are dolphins viviparous or oviparous animals?

Dolphins are viviparous animals, widely living in shallow seas near the continental shelf, and occasionally seen in freshwater. They mainly feed on fish and mollusks. The newborn dolphin suckles milk from the teats on both sides of the mother's genital opening. When nursing, the mother always raises her belly and tries her utmost to bring the teats close to the calf's mouth; relying on the tube formed by the calf's tongue together with the mother's teat, the milk is squirted into the calf's mouth, with the two teats alternating during nursing.

What do dolphins eat to grow up?

Dolphins mainly feed on fish and squid, among which killer whales also prey on mammals (such as whales and pinnipeds) as well as birds and large fish. Like other toothed whales, dolphins rely on echolocation to hunt, and can even stun prey with high-intensity sound. Some dolphins are highly social species, living in large groups (sometimes composed of more than 100000 individuals), and displaying many interesting collective behaviors. There are various ways of cooperation among group members; one example is that pods of dolphins sometimes attack sharks, killing them by ramming, and members also cooperate to rescue injured or sick individuals.

The above is the relevant introduction on whether dolphins are viviparous or oviparous animals, and we hope it is helpful to everyone.