![]() ![]() It was after observing the species living on these islands that the famous British scientist Charles Darwin came up with his theories on evolution. The Galapagos Islands, which include 13 large islands, six smaller islands and 42 islets, were declared a world Heritage site in 1978 and are home to numerous, often endemic species. The study, which is part of a bigger investigation programming to all of the snakes that live in the Galapagos Islands, totalling nine species, began in 2018, with the scientists only publishing their results now. But they also said that these occurrences could be random. The scientists concluded that the reason why the snakes are exhibiting cannibalistic tendencies could be due to a state of stress that instinctively stops them from dying of starvation. We are only beginning to understand the trophic relationships of these snakes which will help us conserve them in the long term.” In a place like Galapagos, it pays to be a generalist as prey numbers can fluctuate dramatically between years. He told Newsflash in an exclusive interview: “Our study highlights the generalist feeding behaviour of Galapagos terrestrial snakes. There are also several tidal pools, which are home to a specialized ecosystem and occasionally trap a sea turtle or stingray.A Western Galapagos Racer (Pseudalsophis occidentalis) that shows cannibal behaviours on Fernandina Island, Galapagos Islands. It is known for the colony of hundreds of marine iguanas that live there as well as a sea lion nursery, some flightless cormorants and the occasional Galapagos hawk. The only visitor site on Fernandina is Punta Espinosa, a maze of sandy trails through interesting lava floes. They are rarely seen by visitors, but can be seen on the National Geographic video "Dragons of Galapagos." These iguanas make a long journey from the rim of the volcano to the floor of the caldera, where they nest. In fact, there is a species of rice rat on the island that is endemic: on other islands, native rats have been muscled out by more aggressive introduced rat species.įernandina is home to a population of Galapagos land iguanas. It does not suffer from the invasive introduced species that plague the rest of the islands, such as rats, ants, goats and different plants. Unlike other extinct species of Galapagos tortoise, the Fernandina subspecies did not die off due to humans: the fossil record indicates that it died off naturally, mostly due to volcanic activity and lack of nesting materials and food.įernandina is famous in Galapagos for being the most pristine of the larger islands. There was once a variety of giant tortoise on Fernandina, but it is now extinct. The endemic flightless cormorant, the only cormorant in the world that cannot fly, is only found on Fernandina, although they do occasionally nest on Isabela. Fernandina and Isabela are home to most of the Galapagos penguin population, and they are commonly spotted on Fernandina's rocky shores. Most of the plant life consists of thick mangroves along the shoreline, which make an excellent home for shore birds and small fish which are an important link in the ecosystem. Some of the crew fainted from the heat and suffocating air.īecause of increased volcanic activity and its relative youth, Fernandina is home to less plant life than some of the other islands, including neighboring Isabela, but it is rich in animal life. Filmed on Fernandina Island in the Galpagos, the Galpagos Racer ( Philodryas biserialis) is a slim, fast-moving, mildly venomous snake that reaches lengths of up to 120cm. Tar was melting off the rigging as he fled, finally anchoring some fifty miles away. In February of 1825, Benjamin Morrell, captain of the British whaling ship Tartar, was passing between Fernandina and Isabela when the volcano on Fernandina, known as La Cumbre, erupted: he barely managed to bring his ship to safety. ![]() It is also the most volcanically active and several serious eruptions have occurred there, the most recent in 2005. It is named for King Fernando of Spain, the monarch who sponsored Christopher Columbus' 1492 voyage of discovery. The westernmost island, or Fernandina (British sailors named it "Narborough" but the Spanish name stuck), is the youngest. The oldest island in the Galapagos is therefore the one furthest to the east, or San Cristobal. In Galapagos, the Nazca Plate moves from west to east over the hot spot, forming volcanoes (which in turn form islands). As the earth's crust, in this case the Nazca Plate, moves across it, a series of volcanoes forms, resulting in a chain of islands more or less in a line. The Galapagos Islands were formed by a "hot spot," or a place under the earth's core that causes the crust above it to form volcanoes. ![]()
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