Mississippi crocodile
Alligator mississippiensis

The Mississippi crocodile, also known as the American alligator and the Mi river crocodile, is 1.8-2.7 meters long, and some will exceed 4 meters. When they close their mouths, they can only see teeth with upper jaws. When illuminated by light, the eyes of larger alligators glow red, while young alligators glow green.
It is found in the southeastern United States, Alabama, Arkansas, north and South Carolina, Florida, Georgia, Mississippi, Louisiana, Oklahoma, and the Mexican borders of Texas and the west.
The young crocodiles of the Mississippi crocodile live on invertebrates, frogs and fish, and when they reach adulthood, they eat turtles, water birds and mammals. In order to catch the birds on the surface of the water to feed, they sometimes suddenly stand up with their tails supporting their bodies.
Alligator
Alligator sinensis
The Yangtze crocodile, or tuó, has an average total length of 1.5 meters and a weight of 36 kilograms. Individual males grow to 2.1 m and weigh up to 45 kg.
It is a crocodile endemic to China, mainly distributed in the middle and lower reaches of the Yangtze River and Taihu Lake. Wild crocodiles are now likely to have fewer than 200 in number, the wild environment has been severely damaged, and few wild nests have been found in the past decade, so it is speculated that they are unlikely to breed in the wild.
The Crocodile lives in temperate, low-altitude rivers and swamps, foraging at night, feeding on shellfish, fish, waterfowl and small mammals. In winter, it will hide in underground caves and hibernate.
Glasses Caiman
Caiman crocodilus
The spectacled caiman, also known as the South American alligator, got its name because of a transverse bone at the front of the eyeball, like a spectacle frame. The general length is about 1.2-2 meters, the maximum can reach 2.5 meters, and the males are larger.
Spectacled caimans are native to Central and South America, although they have since been introduced to Florida and Cuba. It inhabits a wide range of watery habitats and feeds mainly on vertebrates , both aquatic and terrestrial. Their predation strategies include staying still, sneaking up on passing terrestrial vertebrates, and sneaking up on approaching fish and other aquatic vertebrates in the water.
The spectacled caiman is widespread and abundant, and outside of its native range, it is a highly threatening alien species.
Broad-nosed caiman
Caiman latirostris
Broad-snouted caiman, also known as bottlenose caiman, South American bottlenose crocodile. The total length is 2-2.5 meters, the weight is 30-62 kg, and some elderly males can grow up to 3.5 meters. Characterized by their broad snouts, they are predominantly olive-green.
It is found in eastern and central South America and inhabits freshwater marshes and mangroves in southeastern Brazil, northern Argentina, Uruguay, Paraguay and Bolivia. It eats mainly small invertebrates, but also birds, fish and reptiles.
Paraguayan caiman
Caiman yacare
Paraguayan caiman, about 1.5-2.2 meters in length, weighs 18 to 30 kg, and the male is larger. The back is dark olive in color and the abdomen is light in color, yellowish-green to white. There is a very pronounced protrusion of the bone above the eye. The Paraguayan caiman has long been seen as a subspecies of the spectacled caiman, but is now recognized as a separate species.
Paraguayan caimans are widely distributed in South America, with a distribution in Argentina, Bolivia, Brazil and Paraguay. They prefer to live in tropical and subtropical rivers with slow flowing water, silt at the bottom of rivers and high plant growth, but also in lakes, ponds and swamps. Paraguayan alligators eat fish and other reptiles, amphibians and water birds. Male crocodiles have different territories and ranks.
alligator
Crocodilus acutus
American crocodile, 3.2-4.8 meters long, weighs 180-450 kg, the male is larger. The largest individual record was 6.1 meters in total length and 907 kilograms in weight.
The American crocodile is mainly distributed from Florida and Mexico in North America along the Pacific Ocean to South America in Peru and Venezuela. Within the United States, it is only distributed in South Florida. It inhabits mangroves, swamps, and other wetlands at the junction of brackish and fresh water. It mainly eats fish, birds, mammals, turtles, crabs, frogs, and occasionally carrion.
Orinoco crocodile
Crocodylus intermedius
The Orinoco crocodile, a large freshwater crocodile, is a large freshwater crocodile with a total length of 3.6-4.8 meters and a weight of 380-635 kg; the female of the Orinoco crocodile is 3-3.3 meters long and weighs 225-317 kg.
The Orinoco crocodile is found mainly in the lower orinoco river in Venezuela and Colombia in South America. It is the top predator of opportunism, and any creature that moves within its territory is its food, including fish, reptiles, birds and mammals.
Freshwater crocodile
Crocodylus Johnson
Freshwater crocodile, also known as Australian freshwater crocodile, has a total length of 2.1-3 meters, weighs 40-70 kg, and is larger in males. It is endemic to Australia and is found mainly in Western Australia, Queensland and the Northern Territory.
It mainly inhabits lagoons, rivers, depressions, swamps and other waters. Although they can tolerate seawater, they do not have the same adaptability as bay crocodiles. Adult Australian freshwater crocodiles feed mainly on small animals such as birds, fish, amphibians, reptiles and bats.
Philippine crocodile
Crocodylus mindorensis
The Philippine crocodile, also known as the Mendoro crocodile and the Filipino freshwater crocodile, is 1.5-3.1 meters long and weighs 15-36 kg. Philippine crocodiles have a golden medium brown color that darkens as they reach adulthood.
It is found only in the Philippines, with a wild population of about 500-1000 individuals. In 2008, the AMERICAN website "Living Science" named the Philippine crocodile one of the top ten most endangered rare animal species in the world. In the Philippines, although the killing of such crocodiles is strictly prohibited, their distribution is under constant development and non-sustainable fishing methods.
The Philippine crocodile inhabits freshwater swamps, tributaries of rivers, small lakes and ponds. It is an amazing predator, catching large prey such as antelope.
Guatemalan crocodile
Crocodylus moreletii
Guatemalan crocodile, also known as Mexican crocodile, Moreret crocodile, total length 2.2-3 meters, weight 38-58 kg. Males are larger.
It is found in Mexico, Belize and Guatemala in North and Central America. It inhabits swamps, ponds and lagoons and prefers waters with lush vegetation. Adults feed on mammals, birds, and other reptiles, while juveniles feed mainly on fish and insects.
Nile crocodile
Crocodylus niloticus
Nile crocodile, total length 2.4-5 meters, weight 225-550 kg. Males are larger. The Nile crocodile is the largest crocodile in Africa, with the largest individual recorded for evidence coming from Tanzania, with a total length of 6.47 meters and a weight of about 1090 kg.
The Nile crocodile is found in Somalia, Ethiopia, Uganda, Kenya, Egypt, Tanzania, Burundi, Zambia, Zimbabwe, Gabon, South Africa, Malawi, Sudan, Botswana, Cameroon, Madagascar, Senegal, Mali and Chad.
It is mainly inhabited by rivers and lakes, and is in the water at night and sunbathes ashore at sunrise. They prey on antelopes, zebras, buffaloes, etc., and can even hunt hippos, lions and humans.
New Guinea crocodile
Crocodylus novaeguineae
New Guinea crocodile, 2.7-3.5 meters long. Males are larger. It is found on the island of New Guinea. Nocturnal crocodiles that inhabit freshwater wetlands and, although capable of tolerating saltwater, are difficult to spot in coastal waters. It feeds on birds, amphibians, reptiles, fish, and small mammals.
At present, the survival of this species is also threatened by overhunting.
Indian crocodile
Crocodylus palustris
The Indian crocodile, also known as the swamp crocodile, is 2.45-3.2 meters long and weighs 200-250 kg. The largest individual recorded was 5.2 meters in total length and weighed more than 500 kilograms.
It is found in southern Asia in India, Iran, Nepal, Bangladesh, Pakistan and Sri Lanka. It inhabits wetlands such as swamps, rivers, reservoirs, and ponds. Food ranges from insects, fish, frogs, snakes, water birds to mammals, and sometimes more than human nets.
Due to the small average size of the swamp crocodile, it is easy to become food for beasts of prey such as bay crocodiles and tigers.
Bay crocodile
Crocodylus porosus
Bay crocodile, also known as man-eating crocodile and saltwater crocodile, is the largest of the 24 types of crocodiles, with a total length of 3.5-6 meters for males and 2.7-3.1 meters for females. Their size depends heavily on location, habitat and human influences, so they vary widely. Bay crocodiles live in different tropical and subtropical wetlands, such as estuaries, mangroves, swamps and other coastal and tidal zones, and are more tolerant to seawater than general crocodiles. Bay crocodiles are mainly distributed in Australia, Myanmar, Thailand, Laos, Vietnam, Papua New Guinea, Indonesia, Malaysia, Solomon Islands, Vanuatu, Fiji.
The larvae prey on insects , amphibians , crustaceans , tiny reptiles and fish , and adults prey on larger animals , but feed mainly on mud crabs , turtles , monitor lizards and water birds , and some larger adults even prey on buffalo , livestock , wild boar and monkeys. In Australia, the bay crocodile has a record of cannibalism and even attacking ships, so it is also called "man-eating crocodile".
Cuban crocodile
Crocodylus rhombifer
Cuban crocodile, total length 2.1-2.3 meters, weight 70-80 kg. Some large males can reach a length of up to 3.5 meters. The main feature is the black and yellow of the body, and the presence of bony protrusions above the eyeball.
Cuban crocodiles are mainly found in the Zapata swamps and youth islands of Cuba in South America. It inhabits freshwater swamps and wetlands, feeding mainly on fish and invertebrates in its infancy, and in adulthood it feeds on turtles and other mammals.
Thai crocodile
Crocodylus siamensis
The Thai crocodile, also known as the Siamese crocodile, is 2.1-3.2 meters long, weighs 70-150 kilograms, and the male is larger. Large males can reach a total length of up to 4 meters and weigh 350 kg. It is found in Southeast Asia in Indonesia, Laos, Malaysia, Thailand, Vietnam, Brunei and Myanmar.
It inhabits freshwater wetlands and feeds mainly on fish, but also amphibians, reptiles and small mammals.
Desert crocodile
Crocodylus suchus
The desert crocodile, also known as the West African crocodile, has a total length of 1.5-2.5 meters and a maximum length of up to 4 meters. It inhabits the lagoons and wetland forests of central and western Africa in Sudan, Uganda, the Democratic Republic of the Congo, Mauritania, Benin, Liberia, Nigeria, Niger, Cameroon, Chad, the Central African Republic, Equatorial Guinea, Senegal, Mali, Guinea, the Gambia, Burkina Faso, Ghana, Gabon, Togo and the Republic of the Congo.
Ganga crocodile
Gavialis gangeticus
Ganges crocodile, also known as fish-eating crocodile, long-snout crocodile, males are 5-6 meters long, females are 3.5-4.5 meters long, and the body color is olive green.
The Ganga crocodile is a freshwater crocodile found mainly in the Indus, Ganges, Maharadi and Brahmaputra rivers, which were previously found in Bangladesh but are now extinct. Ganga crocodiles prefer to inhabit rivers with fast, deep currents and good water quality.
Juvenile Ganges crocodile insects, larvae and small frogs. Adult Ganges crocodiles feed almost exclusively on fish, occasionally eating carrion.
Black Caiman
Melanosuchus niger
Black caiman, total length 3.5-5 meters, weight 300-400 kg. It is found in northern South America in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Venezuela and French Guiana.
It inhabits a wide variety of wetlands, including rivers, lakes, swamps and floodplains. Juveniles predominantly eat small fish , frogs , such as invertebrates , crustaceans and insects. Larger adults can eat almost any animal on land or in the water of South America.
West African pygmy crocodile
Osteolaemus tetraspis
The West African pygmy crocodile, also known as the pygmy crocodile, is 1.5-1.9 meters long and weighs 18-40 kg. It is found in west and central Africa, mainly inhabiting tropical rainforests, wetlands, ponds and swamps. Catch crabs, frogs and fish at night for consumption.
African narrow-snouted crocodile
Mecistops cataphractus
The African narrow-snouted crocodile, also known as the African narrow-snouted crocodile, is 3-4 meters long and weighs 125-230 kg, so named because of the narrow shape of the mouth. It is found in west and central Africa and inhabits tropical freshwater basins. It feeds mainly on fish , amphibians and crustaceans. Males during the mating season have a strong sense of territory.
Cymbidium cone
Paleosuchus palpebrosus
Ju's cone-nosed shrew, also known as blunt-nosed ancient crocodile, Ju's pygmy crocodile, the total length of 1.2-1.5 meters, weight 6-7 kg, the male is larger, is the smallest of the existing crocodiles, but also the lightest.
It is found in South America in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname and Venezuela. It inhabits slow-flowing, clear freshwater watersheds. Able to tolerate low temperatures and prefer to survive in a cool environment. Territorially aware, day and night. It is a carnivore that feeds on fish, frogs, snails, small crabs, birds, reptiles and small mammals.
Shi's cone shrew
Paleosuchus trigonatus
The Schilder's cone shrew, with a total length of 1.2-1.6 m and a weight of 9-20 kg, is larger in males. It is found in South America in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela.
It inhabits a freshwater environment in forests, prefers to move in shallow water, hides in the shadows, and spends less time basking in the sun. It feeds mainly on snakes, frogs, lizards, birds and small mammals.
Pseudo-fish-eating crocodiles
Tomistoma schlegelii
Pseudo-fish-eating crocodiles, also known as Malay long-snouted crocodiles, have a total length of 3.2-3.9 meters and a weight of 150-210 kg, with individual large males reaching a total length of up to 5 meters. It is mainly distributed in southern Thailand, Malaysia and Indonesia.
Inhabiting the peat swamps of tropical forests, they have a slender and narrow mouth that is suitable for preying on fish, but when analyzing the contents of their stomachs, it has a wide range of feeding habits and is not a crocodile that specializes in fish. The stomach of the pseudo-fish-eating crocodile has been found to contain crab-eating monkeys, small moose deer, wild boars, dogs, birds, monitor lizards, snakes, shrimp and so on.