Cows also have close friends and 10 facts about animals you may not have heard before

The world of animals is made up of thousands, millions of different kinds of creatures contain countless interesting things that so far humans have not been able to discover. Like humans, every creature also has interesting stories that surprise you like: penguins also know to propose marriage partners, cows also have close friends, boys can change sex .

1. Did you know: people and pigs have the same skin structure, human nervous system and round worms are the same .
2. Dumb fish and 11 misunderstandings about animals

1. The voice of goats also has intonation

According to researchers from the University of London, English intonation and voice of goats may vary depending on the human-like living environment, meaning that goats living in different areas will have different intonations.

At the same time, the voice of a goat will be different from that of an adult because they are more exposed to large herds.

2. Wolves say no to "adultery"

A pack of wolves will usually have 3 or 4 animals for up to 20 animals, including a main male wolf, female wolf, wolves, and other old wolves will help look after the young wolves.

Wolves are very faithful animals, when paired together, they will live together for life.

3. Jellyfish Turritopsis dohrnii immortal

When calculated according to the biological life cycle, this creature is capable of immortality. They can re-create body tissue, use stem cells to never die. This is the only multicellular organism known to be able to reverse its life cycle.

4. Penguins know how to propose marriage partners

Like wolves, penguins are also extremely faithful animals. They will live together with the "one wife, one husband" regime with their partners until death.

Not only faithful, penguins are also extremely "romantic", when choosing a satisfactory mate, male penguins will propose by giving penguins a pebble as a symbol of love. .

5. Elephants are animals with a very unique herd culture

The social life of elephants is very strict and there are many actions very similar to human society. In addition to caring and protecting each other, they also have very special greeting ceremonies to welcome a new member to return to the herd after many days of separation, even if they have funeral rites when the elephant in the herd died.

6. Cow has a close friend

According to studies, cows are an animal that likes to socialize with friends. In the herd, each cow will have a few close friends. Experiments also show that, when living apart from that close friend, the cow will become tense and irritable.

7. Dugongs are a model for fish stories

Many believe that the image of a mermaid is built from sea cows, a rather chubby mammal.

When they eat seaweed at the bottom of the ocean, seaweed stalks stick to their heads, float on the waves, looking like long hair. In addition, sea cows have a shuttle-shaped body, a distinctive fin-shaped tail. Therefore, sailors are often confused with fishmen.

8. Whales also have "hit" songs like human music

Whales in the same sea area will "sing" the same song and change with the season. If the song is good, it will be welcomed by other groups of whales in other areas, follow along and sing like a new "hit" song.

9. Boys can switch sex themselves

Depending on the number of species and environmental conditions of the breeding season, mussels can transgender themselves between males and females to best suit the breeding process.

10. "Women's Union" of female lions

While the male lions in the herd will separate and live alone, the female lions in the herd, including mother, sister, . will live together for a lifetime.