The 500-word explanatory text of the kangaroo's self-report is as follows:

1. Kangaroo's self-report 1

Hello everyone, I am a kangaroo from Australia. I am a mammal, a member of the genus Macropod, suborder Diprotodon, suborder Macropodidae. We kangaroos are the most famous national animal in Australia, accounting for one-third of Australia's total population.

I have thick hind legs and a strong tail, which allows us kangaroos to maintain balance when jumping. We usually have brown or gray fur, and strong limbs and tails. Our front legs are short but have flexible joints and claws for grabbing food and grooming.

As kangaroos, we have special pouches that are one of our most distinctive features. This pouch is meant to protect the baby kangaroo until they are able to live independently. In this pouch, the baby kangaroos receive a warm and secure environment while being able to hear their mother's heartbeat and breathing, which helps them form an early emotional bond.

Our living habits are also very unique. We are generally social animals, living in realms called pockets. Within this territory we can protect ourselves from predators while also making it easier to find food. We enjoy eating a variety of plants, including grasses, leaves, roots, and fruits.

Although we kangaroos are a national treasure in Australia, we still face many threats. Examples include habitat loss due to human activities and drought and food shortages caused by climate change. These factors all affect our survival and reproduction.

As one of the symbols of Australia, our kangaroos also play an important role in local culture. Our image appears regularly on Australian banknotes, stamps and souvenirs. In addition, some places host Kangaroo Day and Kangaroo Races to show our love and respect for this country.

2. Kangaroo Self-Report 2

I am a kangaroo, a marsupial mammal that lives in Australia and North America. Our bodies are mostly arched, with a strong back leg that allows us to jump high and far. Our tails help with balance, and our front legs are short and have five digits.

Our gestation period is 35 to 40 days, and we usually give birth in the spring. The pups are very small at birth and they need to grow to full size and maturity in the mother's pouch. We have a special bag that is used to protect and nurse the pups, and this bag is usually used until the pups can live on their own.

Our eating habits depend on specific species and habitats. Some are herbivorous and eat a variety of plants, including leaves, roots, seeds, and fruits. Others are carnivorous or omnivorous, eating small mammals, insects, and other invertebrates.

We are social animals and live in complex communities. Kangaroos in a community are often related, and staying together helps protect themselves from predators.

Although we are the best-known marsupial on the Australian continent, our numbers are declining globally. Overhunting, loss of habitat and climate change are all contributing factors to our decline. To protect us and other wildlife, efforts are being made to protect our habitats and increase enforcement against illegal hunting.

3. Kangaroo Self-Report 3

Hello everyone, I am a kangaroo from Australia. Today I would like to introduce myself to you.

First, let me introduce myself. I am a marsupial with gray-brown skin and strong hind legs, which are my most distinguishing features. On my body, you can see a pair of specialized front legs. Their function is mainly to support me to stand up and to grab food and companions.

Our living habits are also very interesting. We usually live in open forests or grasslands and feed on plants, especially grasses, shrubs, and leaves. We move in groups so we can better protect ourselves and our young.

Speaking of cubs, I want to say that our kangaroo family has a special pouch, which is one of our most proud features. This pouch is to protect our pups and allow them to grow safely within it. Inside the pouch, the pups can hear their mother's heartbeat, which makes them feel very reassured.

Our jumping ability is also one of our distinguishing features.

We can jump at speeds of up to 60 kilometers per hour, which allows us to move quickly while escaping predators.

Finally, what I want to tell you is that our kangaroos are very popular animals in Australia. We are often used as tourism mascots and symbols of Australia. Our image often appears in various movies, books and toys, and has become one of people's favorite images.

4. Kangaroo life history

Kangaroos are world-famous for their pouches, but our knowledge of this native Australian animal doesn’t stop there. During its short life, a kangaroo goes through a series of stages to adapt to its environment and ensure the continuation of the population.

After birth, the baby kangaroo crawls into its mother's pouch. In this safe environment, the wallabies will continue to develop and grow. During the first few months, they absorb breast milk while beginning to explore the world outside the pouch. At this stage, they are highly dependent on their mothers.

As wallabies grow older, they begin to explore more of the outside world while maintaining a close bond with their mother. At around 6 months of age, wallabies begin to wean themselves off their mothers and begin eating some solid food. At this time, they still need their mother's care and protection, but they have begun to learn to live independently.

At around 12 months, baby kangaroos are strong and confident enough to leave their mother's pouch and live on their own. They begin to search for food, water and habitat, and form social relationships with other kangaroos. During this stage, they begin to exhibit the personality and behavioral characteristics of adult kangaroos.

Kangaroos have a relatively short lifespan, usually only 7 to 8 years. However, during this short life, they manage to survive by adapting to their environment, reproducing and interacting with other kangaroos. Despite all the threats and challenges they face, kangaroos continue to dominate Australia's ecosystems with their resilience and ability to survive.

5. The relationship between kangaroos and humans

From ancient times to the present, the relationship between humans and kangaroos has always been complicated. While we once hunted kangaroos for food, we now respect and protect the animals even more.

In Australian Aboriginal myths and legends, kangaroos have been given important symbolic significance. They are often portrayed as brave, tough and endurance animals, qualities that have become a source of pride for the Australian people. Kangaroos represent heroes and important characters in many stories and legends.

With the arrival of European immigrants, kangaroos have encountered unprecedented threats. Because their fur and meat are so valuable, large numbers of kangaroos are hunted. This led to a sharp decline in kangaroo numbers until the 1930s when the government began taking steps to protect the animals. There are now kangaroo sanctuaries in many parts of Australia to ensure their populations are restored and protected.

In addition to being a source of food and fur, kangaroos also have practical value to humans. Their excrement is used to make fertilizer, while their bones are used in traditional medicine. In addition, kangaroos are often featured as display animals in zoos and wildlife sanctuaries, giving people the opportunity to see and learn about this amazing animal up close.

Although our relationship with kangaroos has improved, there are still some problems. Kangaroo populations are declining due to factors such as habitat loss and climate change. To ensure the continued survival of such symbols of Australia, we need to continue to take steps to protect them from threats.