"Protection of Rare Animals" Various Animal PPT Courseware 2

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"Protection of Rare Animals" Various Animal PPT Courseware 2

List 11 animals that will never be seen again on earth

Human activities have led to the widespread disappearance of biological habitats and environmental damage. The earth's creatures are experiencing the sixth mass extinction in history. The following are the 11 most typical animals that have recently become extinct in the past 40 years.

According to foreign media reports, scientists say that the main reason for the accelerated extinction of species today is that human activities have led to the widespread disappearance of biological habitats and environmental damage. Warming global temperatures, rapid population growth, and deterioration of the natural environment are causing the sixth mass extinction in the history of life on earth. Here are 11 of the most iconic animals that have recently become extinct in the past 40 years.

1. Golden Toad (1989)

The golden toad is one of the most beautiful of the species that has disappeared in the past 40 years. The golden toad is famous for its golden body and shiny skin. This luminous amphibian was first discovered in the high altitude areas of Costa Rica and was once abundant in the Monteverde cloud forest in Costa Rica. It only took a few decades for the golden toad to become extinct after being discovered by humans. After 1989, the golden toad was never found again. The golden toad is said to be the first species in Costa Rica to become extinct due to global warming.

Causes of extinction: environmental pollution, global warming, and bacterial infections.

2. Zanzibar Leopard

The Zanzibar leopard is a subspecies of leopard found only on Unguja Island, the main island of Zanzibar Archipelago in Tanzania. So far, people are not sure whether this "big cat" is completely extinct, because they still appear occasionally, but it has not been scientifically confirmed.

The locals believed that the leopards were controlled by witchcraft, so they hunted them aggressively. The animal is considered an evil predator and must be hunted. Even the government is involved in this killing operation. There were brief conservation efforts in the mid-1990s, but by then it was too late. Wildlife researchers concluded that the Zanzibar leopard's long-term survival prospects were slim, and efforts to protect it were shelved.

Reasons for extinction: The Zanzibar leopard was demonized; the development of human agriculture and the rapid increase in population had to encroach on the Zanzibar leopard's habitat and kill other animals that were the Zanzibar leopard's food source.

3. Po’ouli Bird (2004)

The po'ouli bird, also known as the Hawaiian honeycreeper, lives on the Hawaiian Islands in the United States and is known for its unique black cheeks. It is one of the rarest birds in the world and is unique. . The existence of this species of woodfinch was not discovered until the 1970s. They live on the southwest cliffs of Haleakala volcano. Their numbers are declining due to habitat destruction and the introduction of predators such as cats and meerkats. According to statistics from wildlife experts, in 2003 there were only three birds left. Attempts to mate the remaining wood finches ultimately failed to prevent the species' extinction.

Reasons for extinction: Habitat reduction, accompanied by plague, the emergence of predators and lack of food, the number of local tree snails decreased.

Activity 1: Collect information on rare animals

The giant panda is one of the most precious animals in the world. Its population is very rare and it is a national first-level protected animal. Its body color is black and white and it is known as the "National Treasure of China". The giant panda is a species endemic to China and belongs to the Ursidae family. Its main existing habitats are in surrounding mountainous areas such as Sichuan and Shaanxi in China. There are approximately 1,590 wild giant pandas left in the world.

The red-crowned crane is a type of crane and is named after the "red crown" on its head. It is a unique bird species in East Asia. Due to its elegant body and distinct colors, it is a symbol of auspiciousness, loyalty and longevity in the culture of this region. It is a national first-level protected animal. There are about 1,000 left in China.

think about it

What are the consequences of the declining number of animals on Earth?

The continuous reduction of animals will lead to species extinction, thus interrupting the food chain.

The food chain is missing and the ecological balance is destroyed.

The ecological environment is disordered, which directly threatens the human living environment.

Maybe only humans will be left in the end, and then humans will eventually become extinct.

Therefore, protecting endangered species is also a kind of self-protection for us humans.

Establish protected areas

The state established the Wolong Nature Reserve to protect giant pandas, located in Wenchuan County, Sichuan Province. It has played a very good role in the protection of giant pandas.

Artificial Propagation

In 1983, the Chinese Sturgeon Artificial Breeding Collaboration Group succeeded in artificially hatching Chinese sturgeons under Gezhouba Dam, and soon thereafter began to release Chinese sturgeon seedlings and seedlings into the Yangtze River. According to statistics, from 1983 to 1998, nearly 6 million Chinese sturgeons of various sizes were bred and released.

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"Protection of Rare Animals" a variety of animal PPT courseware:

"Protection of Rare Animals" A variety of animal PPT courseware Methods to protect rare animals 1. Establish a nature reserve 2. Protect the forest environment 3. Do not catch and kill indiscriminately 4. If you find the behavior of catching or selling rare animals, report it to 110 5. Promote calls, formulate and...

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Update Time: 2024-09-30

This template belongs to science courseware Hunan Education Edition Fourth Grade Science Volume 1 industry PPT template

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