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Reptiles are cold-blooded vertebrates. (Vertebrates have backbones.) They have dry skin covered with scales or bony plates and usually lay soft-shelled eggs.
No matter their differences, all chameleons have a prize pair of eyes. Their peepers can move in two different directions at once, giving the lizards a panoramic view of their surroundings. This eye-popping reptile really knows how to scale up the cool factor.
Burmese pythons, one of the largest snakes in the world, are best known for the way they catch and eat their food. The snake uses its sharp rearward-pointing teeth to seize prey, and then coils its body around the animal, squeezing a little tighter with each exhale until the animal suffocates. Stretchy ligaments in their jaws allow them to swallow animals up to five times as wide as their head ...
The giant snake opens its mouth wide enough to swallow its victim—sometimes fish or caiman (relatives of crocodiles) and even jaguars and small deer. Anaconda jaws are held together with stretchy ligaments so they can open wide enough to swallow prey whole. And it'd take about 11 kids to weigh as much as one anaconda.
Green sea turtles are the world’s largest species of hard-shelled sea turtle. While most individuals weigh about 300 to 400 pounds (136 to 181 kilograms), some can be as heavy as 440 pounds (204 kilograms). These turtles are found nesting along the coastline of more than 80 countries, with the largest nesting populations found in Costa Rica and Australia. Green sea turtles spend most of ...
Amphibians are cold-blooded vertebrates (vertebrates have backbones) that don’t have scales. They live part of their lives in water and part on land.
They are powerful-looking reptiles with wide, flat heads, rounded snouts, bowed legs, and huge, muscular tails. They have a clumsy, back-and-forth walk, and their yellow tongues flick in and out constantly.
Spotting a small reptile on the ground, it launches itself off the branch and glides down, snagging the prey with its claws. Called Archaeopteryx (ARK-ee-OP-tur-ikhs), this animal will puzzle scientists about 150 million years later: They weren’t sure if it was a dinosaur or a bird.
Mammals include humans and all other animals that are warm-blooded vertebrates (vertebrates have backbones) with hair. They feed their young with milk and have a more well-developed brain than other types of animals.
Geckos are reptiles and are found on all the continents except Antarctica. These colorful lizards have adapted to habitats from rain forests, to deserts, to cold mountain slopes. Over a long period of time, geckos have developed special physical features to help them survive and avoid predators.