Saltwater crocodile in the context of "Least Concern"

Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12,000 extant reptile species and subspecies are classed as marine reptiles, including marine iguanas, sea snakes, sea turtles and saltwater crocodiles.

The earliest marine reptile was Mesosaurus (not to be confused with Mosasaurus), which arose in the Permian period of the Paleozoic era. During the Mesozoic era, many groups of reptiles became adapted to life in the seas, including such familiar clades as the ichthyosaurs, plesiosaurs (these two orders were once thought united in the group "Enaliosauria", a classification now cladistically obsolete), mosasaurs, nothosaurs, placodonts, sea turtles, thalattosaurs and thalattosuchians. Most marine reptile groups became extinct at the end of the Cretaceous period, but some still existed during the Cenozoic, most importantly the sea turtles. Other Cenozoic marine reptiles included the bothremydids, palaeophiid snakes, a few choristoderes such as Simoedosaurus and dyrosaurid crocodylomorphs. Various types of marine gavialid crocodilians remained widespread as recently as the Late Miocene.

Lake Ngardok is a lake on the Palauan island of Babeldaob, in the State of Melekeok. It is the second largest natural freshwater lake in all of the islands of Micronesia, after Lake Susupe on the isle of Saipan in the Commonwealth of the Northern Mariana Islands. The lake and the marshes surrounding it are a refuge for the endangered saltwater crocodile, and it is an important breeding location for them. The Ngerdorch River serves as a route that connects crocodiles with the sea. The lake is approximately 6 hectares in size, with an ecosystem that provides a habitat for plants, wildlife, and birds, some of which are found only in the Palau Islands. These include the endemic Palau fruit dove (biib), Palau fantail (melimdelebdeb), Micronesian imperial-pigeon (belochel), common moorhens and Pacific black ducks (both called debar), Palau flycatcher (charmelachull), and a fruit bat species (olik).The Chief Council of Melekeok State has established the Ngardok Nature Reserve to protect the watershed's slow degradation process, because the importance of the forests are critical to preserving the water quality in the lake. The lake however will soon be established as a reservoir for Ngerulmud, Palau's new national capital in Melekeok.

Telemetry is the in situ collection of measurements or other data at remote points and their automatic transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek roots tele, 'far off', and metron, 'measure'. Systems that need external instructions and data to operate require the counterpart of telemetry: telecommand.

Although the term commonly refers to wireless data transfer mechanisms (e.g., using radio, ultrasonic, or infrared systems), it also encompasses data transferred over other media such as a telephone or computer network, optical link or other wired communications like power line carriers. Many modern telemetry systems take advantage of the low cost and ubiquity of GSM networks by using SMS to receive and transmit telemetry data.

The Nile crocodile (Crocodylus niloticus) is a large crocodilian native to freshwater habitats in Africa, where it is present in 26 countries. It is widely distributed in sub-Saharan Africa, occurring mostly in the eastern, southern, and central regions of the continent, and lives in different types of aquatic environments such as lakes, rivers, swamps and marshlands. It occasionally inhabits deltas, brackish lakes and rarely also saltwater. Its range once stretched from the Nile Delta throughout the Nile River. Lake Turkana in Kenya has one of the largest undisturbed Nile crocodile populations.

Generally, the adult male Nile crocodile is between 3.5 and 5 m (11 ft 6 in and 16 ft 5 in) in length and weighs 225 to 750 kg (496 to 1,653 lb). However, specimens exceeding 6.1 m (20 ft) in length and 1,000 kg (2,200 lb) in weight have been recorded. It is the largest predator in Africa, and may be considered the second-largest extant reptile in the world, after the saltwater crocodile (Crocodylus porosus). Size is sexually dimorphic, with females usually about 30% smaller than males. The crocodile has thick, scaly, heavily armoured skin.

Crocodile farming in the Philippines refers to agricultural industries involving the raising and harvesting of crocodiles for the commercial production of Crocodile meat and crocodile leather.

In the Philippines, crocodile farmers breed and raise two species of Philippine crocodiles: the Philippine saltwater crocodile (Crocodylus porosus) and the Philippine freshwater crocodile (Crocodylus mindorensis). Farms that trade crocodile skin are regulated by the Convention on International Trade in Endangered Species (CITES).