Reptiles are a type of vertebrate animal (have a backbone) and are cold-blooded, namely animals with the same body temperature as the surrounding environment. Reptiles have existed since 300 million years ago. Until the 20th century, there are reptiles in large body sizes that are still left. These are the largest reptiles in the world, according to various sources.
1. Saltwater Crocodile (Crocodilians) is the largest reptile in the world. They grow to over 6 meters (20 feet) in length. This crocodile has giant teeth that are claimed to be able to crush a cow’s skull in the reptile’s jaw. This crocodile population area lives in Australian territory. It is said that the existence of this crocodile has existed or is older than the dinosaurs, so that saltwater crocodiles can provide glimpses of the ancestors of giant animals that lived in prehistoric times.
2. Leatherback Sea Turtle. This giant turtle is over 2 meters (7 ft) long with a fin span of almost 3 meters (8 ft). This turtle eats a type of jellyfish, unfortunately, the animal often mistakenly thinks that what it consumes is a plastic bag that humans may throw away in the water. As a result, many of these turtle species died from swallowing the plastic bags.
3. Reticulated Python. This type of large python is a reptile that can swim swiftly in the waters. Reportedly this python can travel by sea from the Indo-Australian islands. The reticulated python is an aggressive constrictor that relaxes its prey by wrapping it around the body, then swallowing it whole. This animal is recorded to be 6.95 meters (22.8 ft) long, making it slightly longer than the saltwater crocodile.
4. Komodo Dragon. This animal is dubbed the king of lizards. This Komodo dragon is also referred to as a deadly hunting animal that has a length of up to 3 meters (10 feet). In addition, Komodo Dragon’s saliva contains bacteria called virulent strains. Each Komodo dragon bite can result in a fatal infection.
5. Tuatara. This type of iguana does not have a large size like the four animals mentioned above, but this animal is the closest relative of reptiles and snakes that lived in the Mesozoic era, approximately 250 million years ago. Tuataras have legs and brain structures that are very similar to amphibians.