Is dolphin viviparous or oviparous?
Dolphins are viviparous animals, widely live in the shallow sea near the continental shelf, occasionally seen in fresh water. Feed mainly on fish and molluscs. Newborn dolphins suck milk from the nipples on both sides of the female's reproductive pores. When breastfeeding, the female dolphin always tilts up her abdomen to put the nipple close to the cub's mouth, relying on the tube formed by the puppy's tongue and the female dolphin's nipple to shoot milk into the cub's mouth, and the nipples on both sides are fed alternately.
What do dolphins eat to grow up?
Dolphins feed mainly on fish and squid, and killer whales also prey on mammals (such as whales and flippers) as well as birds and large fish. Like other toothed whales, dolphins rely on echolocation for prey and can even stun their prey with loud blows. Some dolphins are highly social species that live in large groups (sometimes more than 100000 individuals) and exhibit many interesting collective behaviors. There are many ways for members of the group to cooperate. One example is that dolphins in the group sometimes attack sharks, killing them through impact, and members also cooperate to save injured or sick individuals.
The above is the introduction of whether dolphins are viviparous or egg-laying animals. I hope it will be helpful to everyone.
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Do silkworms divide male and female?
Silkworms distinguish between males and females. The sex of the silkworm can be distinguished according to the structure of the eighth and ninth segments of the abdomen. There are four transparent dots on the ventral side of the eighth and ninth segments of the female silkworm, and there is a transparent dot in the ventral center of the ninth segment of the male silkworm. Feeding techniques 1. Do a good job of sericulture before elimination
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The living habits of hamsters
Hamsters are solitary animals, are afraid of water, do not like to bask in the sun, and have their own taboos about eating. Chocolate, sweets, fresh milk and carambola are all dietary taboos. Hamsters' living habits 1. They all like to come out at night.
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