Endangered species

Some animals and plants are at risk.

They might go away forever. This is called being endangered.

Many things can cause this. Changes in the air can hurt them. People also change the places where they live.

We can try to help. Some lands are made safe for them. People also work to help them grow in number.

In Brazil, people helped a small monkey. It is called a golden lion tamarin. They even put its face on money!

Helping animals is a big job. We can work together to keep them safe.

An endangered species is a group of living things at risk. They may go extinct soon. This means they could disappear from the world forever.

Many things cause this risk. People change the land where animals live. This is called habitat loss. Other causes include poaching, which is illegal hunting. Changes in the air, or climate change, also cause risk.

Scientists use a special list to track these groups. It is called the IUCN Red List. This list helps us know which species need help. It uses different groups to show the level of risk. Some species are called "critically endangered." This means they have the highest risk of disappearing in the wild. Others are called "vulnerable." This means they have a high risk.

In the United States, a law called the Endangered Species Act helps. It protects animals and their homes. Some species have even recovered because of this law. In Brazil, people saved the golden lion tamarin. They even put its face on money to help people learn about it.

An endangered species is a group of living things at risk of extinction. Extinction means that every single member of that species has died. This could happen to a whole group of animals across the entire world. It might also happen to a group in just one specific area.

Many things cause this risk for living things. Human activity is a big reason why species become endangered. People might take away the places where animals live, which is called habitat loss. Other causes include poaching, which is illegal hunting. Climate change can also make life very hard for many species.

Scientists use a special system to track these risks. The International Union for Conservation of the Nature (IUCN) makes the Red List. This is a famous list that shows the status of many species worldwide.

They use different categories to show how much danger a species is in. "Critically Endangered" means there is a very high risk of extinction in the wild. "Endangered" means there is a higher risk than other groups. "Vulnerable" means there is a high risk of facing trouble. They also track species that are "Extinct in the Wild." These are animals that only live in places like zoos or farms.

Different countries have different ways of helping. In the United States, there is a law called the Endangered Species Act of 1973. This law helps protect animals and their critical habitats.

The US Fish and Wildlife Service is responsible for classifying these species. They also create recovery plans to help populations grow again. In Brazil, the government uses laws to protect the forest and its animals. They can fine people or companies that commit environmental crimes. They can even take away wildlife that was taken illegally.

Brazil is a very special place for nature. It has many different areas like the Amazon forest and the Atlantic forest.

However, wildlife trafficking is a big challenge there. This is when people illegally move animals or plants. In Brazil, birds make up about 80% of the species that are trafficked. One great success happened with the golden lion tamarin. People worked hard to save them from extinction. They even put the tamarin on the 20 reais banknote to teach people about them.

Protecting species can be a hard job for everyone. Some people worry that protecting animals might make it harder to build things on land. In the United States, some groups have argued about these rules. Even so, the law has helped many animals. Nineteen species have been removed from the list because they recovered. In the northeastern United States, 93% of protected species are now stable or growing. It shows that when we understand the science, we can help the world stay healthy.

An endangered species is a group of living things at risk of extinction. Extinction occurs when every individual of a species has died. This risk can affect a species across the entire globe or within a specific region.

Many factors contribute to this danger. Habitat loss and poaching are major drivers. Invasive species and climate change also play significant roles. Human activity is a primary cause of species becoming endangered.

Scientists assess the likelihood of extinction using specific conservation statuses. The International Union for Conservation of the Nature (IUCN) manages the Red List of Threatened Species. This is the most recognized global ranking system. The IUCN classifies species into nine distinct groups. These groups are based on population size and rate of decline. They also consider geographic distribution and population fragmentation. The term "threatened" officially includes three categories: critically endangered, endangered, and vulnerable.

The IUCN categories provide a clear hierarchy of risk. "Extinct (EX)" means no living individuals remain. "Extinct in the wild (EW)" describes species that only survive in captivity or outside their historic range. "Critically Endangered (CR)" represents the highest risk in the wild. "Endangered (EN)" signifies a higher risk than vulnerable species. "Vulnerable (VU)" indicates a high risk of facing extinction. Other categories include "Near Threatened (NT)" and "Least Concern (LC)" for widespread, healthy populations. There are also "Data Deficient (DD)" and "Not Evaluated (NE)" categories for species with insufficient information.

Global conservation efforts involve many nations and complex scientific data. It is estimated that over 50% of the world's species face extinction risks. However, data is often scarce, especially in the vast oceans. This makes it difficult to distinguish between "endangered" and "locally extinct" species. To combat this, 195 countries signed an accord to create Biodiversity Action Plans. In the United States, these are called Species Recovery Plans. These plans aim to protect threatened species and their environments.

Brazil is one of the most biodiverse countries on Earth. It contains biomes like the Amazon and the Atlantic forest. However, wildlife trafficking is a major challenge there. In Brazil, birds account for approximately 80% of all trafficked species. There is a troubling link between smuggling and rarity. The rarer a species becomes, the more valuable it is on the black market. This cycle causes more species to become endangered. Despite this, Brazil has seen success. They saved the golden lion tamarin from extinction through massive awareness campaigns.

Climate change is another leading cause of animal endangerment. This is largely due to carbon dioxide levels in the atmosphere. Before the industrial revolution, carbon dioxide rarely rose above 280 parts per million (ppm). In 2014, levels fluctuated between 395 and 402 ppm. NASA scientist James Hanson suggests we must reduce levels to 350 ppm. This would help maintain a climate suitable for many organisms. Reducing greenhouse gas emissions gives many species a chance to recover.

In the United States, the Endangered Species Act (ESA) of 1973 provides legal protection. The US Fish and Wildlife Service and the National Marine Fisheries Service manage this law. The ESA allows for the designation of critical habitats and recovery plans. It also protects species from certain government actions. However, the law can be controversial. Some industries, such as logging and petroleum, have lobbied against these restrictions. There are also debates regarding land development and private landowner compensation. Some landowners have even used the "shoot, shovel, and shut-up" method to avoid regulations.

Despite these controversies, the ESA is considered an effective recovery tool by scientists. Nineteen species have already been delisted because they recovered. In the northeastern United States, 93% of listed species have stable or recovering populations. Currently, about 1,556 endangered species receive government protection in the U.S. This number does not include species that are threatened but not yet legally protected. Globally, about 13% of vertebrates and 17% of vascular plants are considered imperiled.