[77] Much prey taken is much smaller than the crocodile itself and such prey can be overpowered and swallowed with ease. For example, in Lake Turkana, Kenya, 48.4% of crocodiles had empty stomachs. Only the gharial (Gavialis gangeticus) (and perhaps some of the few very thin-snouted crocodilians) is likely to have noticeably diminished bite force compared to other living species due to its exceptionally narrow, fragile snout. Many fisherman and other workers who are not poverty-stricken will go out of their way to avoid waterways known to harbor large crocodile populations. The Nile crocodile is the top predator in its environment, and is responsible for checking the population of mesopredator species, such as the barbel catfish and lungfish, that could overeat fish populations on which other species, including birds, rely. This predator can destroy about 50% of studied Nile crocodile eggs on its own, often being successful (as are other nest predators) in light of the trance-like state that the mother crocodile enters while brooding or taking advantage of moments where she is distracted or needs to leave the nest. [3], In a study, the serrated hinged terrapin (Pelusios sinuatus) (also sometimes referred to as the "water tortoise") was more commonly reported in the stomach contents of adult crocodiles from Kruger National Park than any single mammal species. It is because the female salt water a smaller then female niles, so for average size the Nile is larger, but once it comes to full grown males the Salty is much larger then the Nile gets. [51] The diet of young crocodiles is made up largely of insects and other invertebrates, since this is the only prey the same animals can easily take. [161], At a reported incubation period of about 90 days, the stage is notably shorter than that of the American alligator (110–120 days) but slightly longer than that of the mugger crocodile. Once the prey is dead, they rip it off using a technique known as death roll. Compare Bull vs. Bear in Face to Face Fight. [40][41], The Nile crocodile is the largest crocodilian in Africa, and is generally considered the second-largest crocodilian after the saltwater crocodile. Among crocodilians, the Nile crocodile possesses a relatively long snout, which is about 1.6 to 2.0 times as long as broad at the level of the front corners of the eyes. but against any other animal are pretty much untouchable. [7] However, some large crocodiles have been recorded as predators of subadult hippos; anecdotally, the infamous giant crocodile Gustave was reported to have been seen killing adult female hippos. Aestivation has been recorded from May to August. [174] Recovery for the species appears quite gradual and few areas have recovered to bear crocodile populations, i.e. The Nile crocodile apparently is more closely related to the crocodiles of the Americas, namely the American (Crocodylus acutus), Cuban (Crocodylus rhombifer), Morelet's (Crocodylus moreletii), and Orinoco crocodiles (Crocodylus intermedius), than to the West African crocodile or other extant African crocodilians. [18][21] In Lake St. Lucia, highly saline water has been pumped into the already brackish waters due to irrigation practices. I see some contradictions in your comparisons. By contrast, you might tear into a steak with 150 to 200 psi (890 newtons). Luke Dollar, a conservation scientist who helps manage National Geographic’s Big Cats Initiative, explains the hunt and explosive moment of predation. However, when size differences are prominent, the predators may prey on each other. Saltwater crocodile is like a king of water body where he lives; his diet includes fish, reptiles, birds, mammals, crustaceans and other species. [187] In comparison, lions, in the years from 1990 to 2006, were responsible for an estimated one-eighth as many fatal attacks on humans in Africa as were Nile crocodiles. Dr. Gregory Erickson … [8] They share basking spots and large food sources, such as schools of fish and big carcasses. When compared to Nile crocodiles from their native Africa, the Florida wild specimens are most closely related to South African Nile crocodiles. [181][182] Additional ecological surveys and establishing management programs are necessary to resolve these questions. They are very aggressive species which is capable of hunting any animal species. [76] No matter where they attack prey, this and other crocodilians take practically all of their food by ambush, needing to grab their prey in a matter of seconds to succeed. [94] Additionally, crocodiles readily take dead or dying fish given the opportunity, thus are likely to incidentally improve the health of some fish species’ populations as this lessens their exposure to diseases and infection. [17], A study on Lake Turkana in Kenya (informally this population would be placed in C. n. pauciscutatus) has shown that the local crocodiles appear to have more osteoderms in their ventral surface than other known populations, thus are of lesser value in leather trading, accounting for an exceptionally large (possibly overpopulated) local population there in the late 20th century. The jaws of a crocodile can be securely shut with several layers of duct tape.[117]Nile:6000psi. However, I didn't find a proper reference for this. Never has any crocodile been weighed over 1100kg. [42] The Nile crocodile has a reputation as a voracious and destructive feeder on freshwater fish, many of which are essential to the livelihoods of local fisherman and the industry of sport fishing. For example, a 3.9 m (12 ft 10 in) black caiman (Melanosuchus niger) was found to have a notably broader and heavier skull than that of a Nile crocodile measuring 4.8 m (15 ft 9 in). In the Zambezi River and Lake St. Lucia, Nile crocodiles have been known to prey on bull sharks (Carcharhinus leucas) and sand tiger sharks (Carcharias taurus). [27] Pooley found in Royal Natal National Park that during aestivation, young crocodiles of 60 to 90 cm (24 to 35 in) total length would dig tunnels around 1.2 to 1.8 m (3 ft 11 in to 5 ft 11 in) in depth for most, some tunnels measuring more than 2.7 m (8 ft 10 in), the longest there being 3.65 m (12 ft 0 in). Sydney russel, he means force by strength. and by the way weight doesn’t matter. Nile crocodiles normally crawl along on their bellies, but they can also "high walk" with their trunks raised above the ground. [49], In South Africa, Nile crocodiles are more easily observed in winter because of the extensive amount of time they spend basking at this time of year. Like all crocodilians, for example, the Nile crocodile is a quadruped with four short, splayed legs, a long, powerful tail, a scaly hide with rows of ossified scutes running down its back and tail, and powerful, elongated jaws. Carcass size shapes the structure and functioning of an African scavenging assemblage. How come no one measures them? India, Andaman and Nicobar island, Australia, Sri lanka. [117], Adult Nile crocodiles, i.e. Large mammalian predators in Africa are often social animals and obligated to feed almost exclusively on terrestrial zones. [134] All domesticated ungulates and pet animals will on occasion be hunted by Nile crocodiles, up to the size of dromedary camels (Camelus dromedarius)[135] and cattle (Bos taurus)[136] In Tanzania, up to 54 head of cattle may be lost to crocodiles annually, increasing the human-crocodile conflict level. [193], Regional reportage from numerous areas with large crocodile populations nearby indicate, per district or large village, that crocodiles often annually claim about a dozen or more lives per year. [71] In the southern reaches of their range, as a response to dry, cool conditions that they cannot survive externally, crocodiles may dig and take refuge in tunnels and engage in aestivation. Hypothetical. [43] In East Africa, they are found mostly in rivers, lakes, marshes, and dams, favoring open, broad bodies of water over smaller ones. [3][7] As an example of the body mass increase undergone by mature crocodiles, one of the larger crocodiles handled firsthand by Cott (1961) was 4.4 m (14 ft 5 in) and weighed 414.5 kg (914 lb), while the largest specimen measured by Graham and Beard (1973) was 4.8 m (15 ft 9 in) and weighed more than 680 kg (1,500 lb). Smaller specimens can gallop, and even larger individuals are capable on occasion of surprising bursts of speed, briefly reaching up to 14 km/h (8.7 mph). [18], Females lay their eggs about one to two months after mating. That’s the highest bite force … [3][64], Nile crocodiles are an invasive species in North America, and several specimens have been recently captured in South Florida, though no signs that the population is reproducing in the wild have been found. Multiple, other sources have listed this as a maximum or near maximum size. [42][49] Graham and Beard (1968) hypothesized that, while females do continue to grow as do males throughout life, that past a certain age and size that females much over 3.2 m (10 ft 6 in) in length in Lake Turkana no longer breed (supported by the physiology of the females examined here); however, subsequent studies in Botswana and South Africa have found evidence of nesting females at least 4.1 m (13 ft 5 in) in length. 1 Nile Crocodile – Bite Force : 5000 psi. By contrast, you … On each side of the mouth, five teeth are in the front of the upper jaw (premaxilla), 13 or 14 are in the rest of the upper jaw (maxilla), and 14 or 15 are on either side of the lower jaw (mandible). In comparison, piscivorous water birds from Africa eat far more per day despite being a fraction of the body size of a crocodile, for example a cormorant eats up to 1.4 kg (3.1 lb) per day (about 70% of its own body weight), while a pelican consumes up to 3.1 kg (6.8 lb) per day (about 35% of its own weight). [4][6][9] According to Cott (1961), the average length and weight of Nile crocodiles from Uganda and Zambia in breeding maturity was 3.16 m (10 ft 4 in) and 137.5 kg (303 lb). It covers widespread area of sub-saharan Africa and found in rivers, lakes and marshlands. Successful sustainable-yield programs focused on ranching crocodiles for their skins have been successfully implemented in this area, and even countries with quotas are moving toward ranching. Larger corvids and some non-wading water birds (i.e. Saltwater crocodiles have the strongest bite of any animal today and a large saltwater crocodile can crush a full-grown bovid's skull between its jaws. South Africa or Tanzania) is in August through December. Crocodiles feature a mouth full of sharp teeth. Fish become especially significant around this age and size. One of the fish predators seriously affected by the unchecked mesopredator fish populations (due again to crocodile declines) is humans, particularly with respect to tilapia, an important commercial fish that has declined due to excessive predation. size matters for crocs so slat water wills heres what happens. [3][10] The Nile crocodile is one of the most dangerous species of crocodile and is responsible for hundreds of human deaths every year. Saltwater Crocodile - Crocodylus porosus Largest living crocodilian species with a confirmed measurement, and in fact the world's largest living reptile in terms of mass. Cassell Illustrated, 978-0713723823. [19][22][23] Dispersal across the Atlantic is thought to have occurred 5 to 6 million years ago. [27][43] Adult male Nile crocodiles usually range in length from 3.3 to 5.0 m (10 ft 10 in to 16 ft 5 in) long; at these lengths, an average sized male may weigh from 150 to 700 kg (330 to 1,540 lb). Salty crocodiles have speed of 15-18 miles per hours in bursts and 2-3 miles in cruising. [42][49] In Lake Kyoga and Lake Kwana, 73.1% of the crocodiles that did not have empty stomachs had fish in their stomachs. Nile crocodile bite force: 5000 psi Crocodiles tend to respect this order; when it is infringed, the results are often violent and sometimes fatal. [56], Isolated populations also exist in Madagascar, which likely colonized the island after the extinction of voay. [7] Crocodile longevity is not well established, but larger species like the Nile crocodile live longer, and may have a potential average life span of 70 to 100 years, though no crocodilian species commonly exceeds a lifespan of 50 to 60 years in captivity. Some crocodiles of the species may habitually use their tails to sweep terrestrial prey off balance, sometimes forcing the prey specimen into the water, where it can be more easily drowned. Much of the contamination of crocodiles occurs when they consume rancid fish themselves killed by pollutants. This combined with the species’ large size renders a higher risk of attack. If the temperature inside the nest is below 31.7 °C (89.1 °F), or above 34.5 °C (94.1 °F), the offspring will be female. If this happened? [3][7] The only frequently recorded lizard prey is the large Nile monitor (Varanus niloticus), although this mesopredator may be eaten fairly regularly, as they often share similar habitat preferences, whenever a crocodile is able to ambush the stealthy monitor, which is more agile on land than the bulkier crocodile. [19] The distributional boundaries between these species were poorly understood, but following several studies, they are now better known. In crocodiles between these distributions egg-laying is in intermediate months, often focused between April and July. A., Sebastián‐González, E., & Owen‐Smith, N. (2015). [150] Earlier studies support that breeding is often inconsistent in females less than 3 m (9 ft 10 in) and clutch size is smaller, a female at 2.75 m (9 ft 0 in) reportedly never lays more than 35 eggs, while a female measuring 3.64 m (11 ft 11 in) can expect a clutch of up to 95 eggs. [38] The broadest snouted modern crocodilians are alligators and larger caimans. The Saltwater crocodile average size is between 4 and 5 metres for an adult male this is also the average for a mile crocodile, the maximum size for a Saltwater crocodile is 6 metres and very occasionaly just over 7 metre but taken into account this is very rare but possible given the exact right available food and habitat in very remote areas far from human interference, generally Nile crocs max out at just over 5 metres with the exception like Gustave who is said to be 5.8 metres. If their jaws are bound together in the extreme midday heat, Nile crocodiles may easily die from overheating. Like all crocodiles they are sexually dimorphic, with the males up to 30% larger than the females, though the difference is even more in some species, like the saltwater crocodile. [78] Since their speed and agility on land is rather outmatched by most terrestrial animals, they must use obscuring vegetation or terrain to have a chance of succeeding during land-based hunts. [89][90][91] The largest fishes attacked in such cases may potentially weigh more than 45 kg (99 lb). More time is spent in water in overcast, rainy, or misty days. 2 Saltwater Crocodile – Bite Force : 3690 psi. [27] The most dominant crocodile eats first. [21] The Nile crocodile's current range of distribution extends from the regional tributaries of the Nile in Sudan and Lake Nasser in Egypt to the Cunene of Angola, the Okavango Delta of Botswana, and the Olifants River in South Africa. The Nile crocodile has historically been recorded in areas where they are now regionally extinct. They are very dangerous for humans because of their larger size. Nile crocodiles with skulls this size are likely to measure in the range of 5.4 to 5.6 m (17 ft 9 in to 18 ft 4 in), which is also the length of the animals according to the museum where they were found. [73], Nile crocodiles have been widely known to have gastroliths in their stomachs, which are stones swallowed by animals for various purposes. Many "large waders" are virulent predators of crocodile hatchlings, from dainty little egrets (Egretta garzetta) and compact hamerkops (Scopus umbretta) to towering saddle-billed storks (Ephippiorhynchus senegalensis), goliath herons and shoebills (Balaeniceps rex). [33][34] As in all crocodilians, Nile crocodiles have exceptionally high levels of lactic acid in their blood, which allows them to sit motionless in water for up to 2 hours. In Kruger National Park, over the course of 22 years of discontinuous observation, 60% of the large-game kills observed as perpetrated by crocodiles consisted of impala, while more than 15% of observed kills were made up of waterbuck (Kobus ellipsiprymnus), the largest of the genus Kobus at more than 200 kg (440 lb) in weight. In general, at the smallest sizes (0.3–1 m (1 ft 0 in–3 ft 3 in)), Nile crocodiles were most likely to have full stomachs (17.4% full per Cott); adults at 3–4 m (9 ft 10 in–13 ft 1 in) in length were most likely to have empty stomachs (20.2%). I have watched some documentaries in which Nile crocodile gets tired faster while saltwater crocodiles do death roll and any possible to get out of it. In the northern extremes of the distribution (i.e. [16][20] At one time, the fossil species Rimasuchus lloydi was thought to be the ancestor of the Nile crocodile, but more recent research has indicated that Rimasuchus, despite its very large size (about 20–30% bigger than a Nile crocodile with a skull length estimated up to 97 cm (38 in)), is more closely related to the dwarf crocodile (Osteolaemus tetraspis) among living species. [39] However, despite their robust skulls, alligators and caimans appear to be proportionately equal in biting force to true crocodiles, as the muscular tendons used to shut the jaws are similar in proportional size. [7][150] After this stage, crocodiles may loosely associate with similarly sized crocodiles and many assuredly enter feeding congregations of crocodiles once they attain 2 m (6 ft 7 in), at which size predators and cannibal crocodiles become much less of a concern. [7] A bull giraffe that lost his footing on a river bank in Kruger National Park was seen to be killed by a large crocodile, while in another case there, a healthy bull buffalo was seen to be overpowered and killed by an average-sized adult male crocodile measuring 4.25 m (13 ft 11 in) after a massive struggle, an incident less commonly seen at this size. Venomous species, including the puff adder (Bitis arietans), the forest cobra (Naja melanoleuca), and the black mamba (Dendroaspis polylepis) have been recorded as Nile crocodile prey. Among the larger males of a population, territorial clashes can lead to physical fighting between males especially if they are near the same size. A 4.59 m (15.1 ft)-long saltwater crocodile has been confirmed as having the highest bite force ever recorded for an animal in a laboratory setting, with a bite force value of 16,414 N (1,673.8 kgf) (surpassing the previous record of 13,172 N (1,343.2 kgf) made by an American alligator (Alligator mississippinesis)). But the salties were definitely longer and seemed more active. While these are probably sometimes used as gastroliths, they are likely often ingested for their nutritional value. Nile crocodile is heavier and has stronger bite force but when it is compare with salty crocodile then they both have similar jaw structure. Lolong, by the way, is also the longest saltie ever measured. They are agile predators and wait for the opportunity for a prey item to come well within attack range. Have you actually seen the very biggest nile crocodiles in the Mara river in Kenya? [18] The segregation of the West African crocodile (C. suchus) from the Nile crocodile has been supported by morphological characteristics,[17][19] studies of genetic materials[16][19] and habitat preferences. While adults can and will consume nearly all types of prey consumed by the younger specimens, as adult crocodiles gain bulk, they lose much of the necessary maneuverability to capture agile prey such as fish and are not likely to meet their dietary needs by consuming small prey and may expel unnecessary amounts of energy, so take them secondarily to larger prey. It has strong jaw pressure that drag a fully grown water buffalo into a river. [7][13][14], Although no subspecies are currently formally recognized, as many as seven have been proposed, mostly due to variations in appearance and size noted in various populations through Africa. It makes its prey off balance and making easier to drag the prey to water. Incautious human behavior is the primary drive behind crocodile attacks. [146], Living in the rich biosphere of Africa south of the Sahara, the Nile crocodile may come into contact with multiple other large predators. [3][70] Although they can remain practically motionless for hours on end, whether basking or sitting in shallows, Nile crocodiles are said to be constantly aware of their surroundings and aware of the presence of other animals. Crocodiles less than 3 m (9 ft 10 in) may take a variety of medium–sized mammals up to equal their own mass, including various monkeys, duikers,[112] rodents, hares, pangolins,[3] bats, dik-dik, suni (Neotragus moschatus),[113] oribi (Ourebia ourebi)[114] and other small ungulates up to the size of a Thomson's gazelle (Eudorcas thomsonii). They are ambush predator and wait for prey to come to them. giant water bugs but also crickets and dragonflies.

nile crocodile vs saltwater crocodile bite force

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