List of critically endangered species in the United States facts for kids

An IUCN Red List critically endangered (CR or sometimes CE) species is a type of animal, plant, or other living thing that is in extreme danger. The International Union for Conservation of Nature (IUCN) says these species face a very high risk of disappearing forever from the wild.

As of 2021, the IUCN tracks over 120,000 different species. Out of these, more than 8,400 are considered critically endangered. This means they need urgent help to survive.

Animals in Danger: Critically Endangered Species

Many different kinds of animals are facing the threat of extinction. Scientists group these animals into categories like molluscs, arthropods, and chordates. Let's explore some examples of these amazing creatures that need our protection.

Molluscs: Soft-Bodied Wonders

Molluscs are a large group of soft-bodied animals. They often have a hard shell, like snails, clams, and oysters. Many molluscs live in water, but some live on land. Sadly, several mollusc species are critically endangered.

Arthropods: Insects and More

Arthropods are animals with exoskeletons (hard outer shells), segmented bodies, and jointed legs. This group includes insects, spiders, and crabs. They are the largest group in the animal kingdom, but some are in deep trouble.

Chordates: Animals with Backbones

Chordates are a diverse group of animals that have a notochord (a flexible rod that supports the body) at some point in their lives. This group includes fish, amphibians, reptiles, birds, and mammals – all animals with backbones. Many chordates are critically endangered.

Amphibians: Life on Land and Water

Amphibians are cold-blooded animals that can live both on land and in water. They include frogs, toads, and salamanders. Their skin is often moist, and they usually lay eggs in water. Many amphibian species are struggling to survive.

Mammals: Warm-Blooded Creatures

Mammals are warm-blooded animals with fur or hair. They feed their young milk and usually give birth to live babies. This group includes humans, whales, and wolves. Some of the largest and most well-known animals are critically endangered.

Reptiles: Scaly Skin and Eggs

Reptiles are cold-blooded animals with scales or scutes. They usually lay eggs on land. This group includes snakes, lizards, turtles, and crocodiles. Many reptiles are facing serious threats to their survival.

Turtles and Tortoises: Ancient Survivors

Turtles and tortoises are reptiles known for their protective shells. Turtles often live in water, while tortoises live on land. These ancient creatures have been around for millions of years, but many species are now critically endangered.

Lizards: Agile and Diverse

Lizards are a large group of reptiles known for their scaly skin and often long tails. They live in many different habitats around the world. Some lizard species are now critically endangered.

Fish: Life in Water

Fish are aquatic animals that breathe using gills. They are a very diverse group, living in oceans, rivers, and lakes. Many fish species, including sharks and smaller freshwater fish, are critically endangered.

Birds: Feathered Flyers

Birds are warm-blooded animals with feathers, wings, and beaks. Most birds can fly, but some, like penguins, cannot. Birds are found all over the world, but many species are now critically endangered.