Red-eared slider

This is the red-eared slider.

It has red stripes by its eyes. It can slide quickly into the water. The turtle has a hard shell. The top part is green. The bottom part is light yellow. Females are usually larger than males.

Males have long claws on their front feet. These turtles love to sit in the sun. This helps them stay warm. They live in warm ponds and lakes. They can live for many years.

The red-eared slider is a popular pet turtle.

It gets its name from a red stripe behind its eyes. This turtle can slide quickly into the water. Its shell has two main parts. The top part is called the carapace. It is often dark green with markings. The bottom part is called the plastron. This part is usually light yellow.

These turtles are cold-blooded. This means they need the sun to stay warm. They often bask on rocks or logs.

In the winter, they do not hibernate. Instead, they enter a state called brumation. They stay very still at the bottom of ponds. Their heart rate drops by 80 percent to save power.

Males and females look different when they are adults. Females are usually larger than males.

Males have longer claws on their front feet. This helps them hold on during mating. The male's bottom shell is also slightly curved.

Red-eared sliders are also invasive. This means they can cause problems in new places. They often outcompete native animals for food and homes.

The red-eared slider is a very popular pet turtle around the world.

This turtle belongs to a group called chelonians. It is a subspecies of the pond slider. These animals are native to the southern United States and northern Mexico.

They live in warm, still water like ponds, lakes, or slow rivers. Because people love them as pets, they are often released into new places. This has made them one of the most invasive species in the world.

These turtles have a special way of staying warm. They are poikilothermic, which means they depend on the temperature of their environment. To keep their body temperature right, they must sunbathe frequently. They often climb onto rocks or logs to soak up the sun.

Sometimes, you might even see them basking in a group on top of each other. When they feel unsafe, they can pull their head, legs, and tail inside their shell. Their shell has two main parts: the top carapace and the bottom plastron.

Scientists have studied these turtles for a long time. They were once called Troost's turtles. This name honored an American scientist named Gerard Troost.

Today, we use the scientific name Trachemys scripta elegans. The name "red-eared slider" comes from two things. First, they have a bright red stripe behind their eyes. Second, they can slide very quickly into the water.

There are many interesting facts about how they grow and live. A red-eared slider can live for 20 to 30 years.

Some can even live for more than 40 years if they are kept in captivity. Females are usually larger than the males.

Adult males reach maturity when their shells are 30 millimeters wide. Females reach maturity when their shells are 40 millimeters wide.

Males also have much longer claws on their front feet than females. This helps them during mating and courtship displays.

Red-eared sliders are found on six out of seven continents.

They are found in places like Canada, Australia, and Great Britain. In some places, like Australia, it is illegal to keep them because they are invasive. They can take food and nesting spots away from native animals.

They can also spread diseases to other local turtles. Even though they can cause problems in the wild, they remain fascinating creatures to observe.

The red-eared slider (Trachemys scripta elegans) is a subspecies of the pond slider. It belongs to the family Emydidae and the order Testudines. This order contains about 250 different chelonian species.

The red-eared slider is famous globally as a popular pet. However, it is also recognized as the most invasive chelonian in the world. Because people often release them into new environments, they have established populations on six of the seven continents.

The physical structure of the red-eared slider is highly specialized. Their shell is divided into two main parts: the dorsal carapace and the ventral plastron. The carapace is the upper shell. It consists of vertebral scutes in the center, pleural scutes on the sides, and marginal scutes around the edge. These scutes are bony, keratinous elements. The plastron is the lower shell, which is usually light yellow with dark markings.

The shell color changes as the turtle ages. Young turtles are often leaf green. As they grow, they become a darker green or a shade between olive and brown. This pattern provides camouflage in their natural habitats.

These turtles are poikilothermic, meaning they depend on their environment to regulate body temperature. Because they cannot generate their own heat, they must sunbathe frequently. They often climb onto rocks or logs to absorb solar energy. This behavior is essential for their survival and metabolic functions. In the water, they are almost entirely aquatic. They use partially webbed feet to swim efficiently. When threatened, they can retract their head, legs, and tail entirely inside the protective carapace.

Red-eared sliders exhibit sexual dimorphism, which means males and females have different physical traits. While young turtles look nearly identical, adults show clear differences. Females are generally larger than males. A male reaches sexual maturity when his carapace is 30 millimeters wide. A female reaches maturity at 40 millimeters.

Males have longer claws on their front feet to assist in courtship and mating. Their tails are also thicker and longer than those of females. Additionally, the male's plastron is slightly concave to help stabilize him during mating. The female's plastron remains completely flat.

The history of the red-eared slider includes several scientific name changes. It was previously known as Troost's turtle. This name honored the American herpetologist Gerard Troost. The species was also once classified as Chrysemys scripta elegans. The common name "red-eared slider" describes two specific traits. The first is the red stripe located behind the eyes, near where external ears would be. The second refers to their ability to slide quickly into the water. Interestingly, the brightness of the red stripe can indicate immune health. A bright red stripe suggests a higher immune response than a yellow one.

In the wild, these turtles inhabit warm, still waters like ponds, lakes, and swamps. They are omnivores, though their diet changes with age. Juveniles are carnivorous because they need high protein for growth. Adults require abundant aquatic plants.

During winter, they do not hibernate, but instead undergo brumation. When temperatures drop below 10 degrees Celsius in October, they enter a state of sopor. Their metabolic rate drops, and their heart rate can decrease by 80%. During this time, they remain nearly motionless at the bottom of water bodies. They can even survive anaerobically for weeks by producing ATP from glycolysis. The minerals in their shell help buffer lactic acid to prevent acidosis.

As an invasive species, the red-eared slider poses significant ecological risks. They are included in the list of the world's 100 most invasive species. They outcompete native species for food, basking sites, and nesting locations. This is due to their larger body size, higher fecundity, and lower age at maturity.

They can also transmit diseases to local wildlife. Because of these risks, some regions have implemented strict laws. Australia has banned their import and release. The European Union has also banned their import. In Japan, new regulations established in 2023 restrict their trade to protect local ecosystems.