Sunday, July 28, 2013

Whitehaven Beach, Queensland, Australia


Whitehaven Beach is a 7 km stretch along Whitsunday Island. The island is accessible by boat from the mainland tourist ports of Airlie Beach and Shute Harbour, as well as Hamilton Island. The Whitehaven Beach Ocean Swim is a 2 km open swimming competition held on the Beach in November each year as part of the Hamilton Island Triathlon Event. The 2012 event was held on 11 November 2012

Saturday, July 20, 2013

Spider


Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exception of air and sea colonization. As of 2008, at least 43,678 spider species, and 109 families have been recorded by taxonomists; however, there has been confusion within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900
Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. Unlike insects, spiders do not have antennae. In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure.
Their abdomens bear appendages that have been modified into spinnerets that extrude silk from up to six types of silk glands within their abdomen. Spider webs vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than orb-web spiders. Spider-like arachnids with silk-producing spigots appeared in the Devonian period about 386 million years ago, but these animals apparently lacked spinnerets. True spiders have been found in Carboniferous rocks from 318 to 299 million years ago, and are very similar to the most primitive surviving order, the Mesothelae. The main groups of modern spiders, Mygalomorphae and Araneomorphae, first appeared in the Triassic period, before 200 million years ago.
A herbivorous species, Bagheera kiplingi, was described in 2008, but all other known species are predators, mostly preying on insects and on other spiders, although a few large species also take birds and lizards. Spiders use a wide range of strategies to capture prey: trapping it in sticky webs, lassoing it with sticky bolas, mimicking the prey to avoid detection, or running it down. Most detect prey mainly by sensing vibrations, but the active hunters have acute vision, and hunters of the genus Portia show signs of intelligence in their choice of tactics and ability to develop new ones. Spiders' guts are too narrow to take solids, and they liquidize their food by flooding it with digestive enzymes and grinding it with the bases of their pedipalps, as they do not have true jaws.
Male spiders identify themselves by a variety of complex courtship rituals to avoid being eaten by the females. Males of most species survive a few matings, limited mainly by their short life spans. Females weave silk egg-cases, each of which may contain hundreds of eggs. Females of many species care for their young, for example by carrying them around or by sharing food with them. A minority of species are social, building communal webs that may house anywhere from a few to 50,000 individuals. Social behavior ranges from precarious toleration, as in the widow spiders, to co-operative hunting and food-sharing. Although most spiders live for at most two years, tarantulas and other mygalomorph spiders can live up to 25 years in captivity.
While the venom of a few species is dangerous to humans, scientists are now researching the use of spider venom in medicine and as non-polluting pesticides. Spider silk provides a combination of lightness, strength and elasticity that is superior to that of synthetic materials, and spider silk genes have been inserted into mammals and plants to see if these can be used as silk factories. As a result of their wide range of behaviors, spiders have become common symbols in art and mythology symbolizing various combinations of patience, cruelty and creative powers.


Palaui Island, Cagayan Valley, Philippines


STA. ANA, Cagayan—An island at the tip of Luzon mainland is being considered the next location of the British reality television series, “Survivor,” drawing mixed reactions from officials, civil society groups and residents of this coastal town.

Palaui Island, located about 500 meters off Barangay San Vicente, will be the location of the 26th season of “Survivor,” said an Inquirer source, who asked not to be named for lack of authority to speak on the matter.

“Everything has been finalized, and a memorandum of understanding among the concerned parties will be signed on March 6,” said the source, who was among those who attended the meeting of the Protected Areas Management Board (PAMB) in Tuguegarao City on Wednesday.

The 7,415-hectare island, which is within the Cagayan Special Economic Zone and Freeport (CSEZFP), has also been declared a marine reserve under Proclamation No. 447, issued on Aug. 28, 1994. It is jointly managed by the PAMB and the Cagayan Economic Zone Authority (Ceza).

Since 2006, Palaui has been opened to local tourism, with the ruins of a 120-year-old lighthouse sitting on top of a hill at the northern edge, the white beaches of Cape Engaño and the scenic forested mountain landscape, as the main attraction.

This early, however, controversy looms as residents and other environmentalists have expressed concern over the possible environmental impact of the event on the island.

“[People living on the island] are against it, fearing the possible adverse impact that the presence of the entire entourage will have on their lives and their environment,” Mayor Darwin Tobias said.


Friday, July 19, 2013

Bat


Bats are mammals of the order Chiroptera (/kaɪˈrɒptərə/; from the Greek χείρ - cheir, "hand" and πτερόν - pteron, "wing") whose forelimbs form webbed wings, making them the only mammals naturally capable of true and sustained flight. By contrast, other mammals said to fly, such as flying squirrels, gliding possums, and colugos, can only glide for short distances. Bats do not flap their entire forelimbs, as birds do, but instead flap their spread-out digits, which are very long and covered with a thin membrane or patagium.
Bats represent about 20% of all classified mammal species worldwide, with about 1,240 bat species divided into two suborders: the less specialized and largely fruit-eating megabats, or flying foxes, and the more highly specialized and echolocating microbats.About 70% of bats are insectivores. Most of the rest are frugivores, or fruit eaters. A few species, such as the fish-eating bat, feed from animals other than insects, with the vampire bats being hematophagous.
Bats are present throughout most of the world, performing vital ecological roles of pollinating flowers and dispersing fruit seeds. Many tropical plant species depend entirely on bats for the distribution of their seeds. Bats are important in eating insect pests, reducing the need for pesticides. The smallest bat is the Kitti's hog-nosed bat, measuring 29–34 mm (1.14–1.34 in) in length, 15 cm (5.91 in) across the wings and 2–2.6 g (0.07–0.09 oz) in mass. It is also arguably the smallest extant species of mammal, with the Etruscan shrew being the other contender. The largest species of bat are a few species of Pteropus and the giant golden-crowned flying fox with a weight up to 1.6 kg (4 lb) and wingspan up to 1.7 m

Wednesday, July 17, 2013

Champagne Beach, Vanuatu


Champagne Beach is a popular beach located on the island of Espiritu Santo in Vanuatu. It is famous for its beautiful white sandy beaches, one of the best in the South Pacific. It is visited regularly by tourists and cruise boats from Australia. Its waters are very clear
Champagne Beach is located in adjacent and close proximity to Hog Harbour village on the northeast of Santo.


Tuesday, July 16, 2013

Giraffe


The giraffe (Giraffa camelopardalis) is an African even-toed ungulate mammal, the tallest living terrestrial animal and the largest ruminant. Its species name refers to its camel-like appearance and the patches of color on its fur. Its chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones and its distinctive coat patterns. It stands 5–6 m (16–20 ft) tall and has an average weight of 1,600 kg (3,500 lb) for males and 830 kg (1,800 lb) for females. It is classified under the family Giraffidae, along with its closest extant relative, the okapi. The nine subspecies are distinguished by their coat patterns.
The giraffe's scattered range extends from Chad in the north to South Africa in the south, and from Niger in the west to Somalia in the east. Giraffes usually inhabit savannas, grasslands, and open woodlands. Their primary food source is acacia leaves, which they browse at heights most other herbivores cannot reach. Giraffes are preyed on by lions, and calves are also targeted by leopards, spotted hyenas and wild dogs. Adult giraffes do not have strong social bonds, though they do gather in loose aggregations if they happen to be moving in the same general direction. Males establish social hierarchies through "necking", which are combat bouts where the neck is used as a weapon. Dominant males gain mating access to females, which bear the sole responsibility for raising the young.
The giraffe has intrigued various cultures, both ancient and modern, for its peculiar appearance, and has often been featured in paintings, books and cartoons. It is classified by the International Union for Conservation of Nature as Least Concern, but has been extirpated from many parts of its former range, and some subspecies are classified as Endangered. Nevertheless, giraffes are still found in numerous national parks and game reserves.

Wineglass Bay, Tasmania


Freycinet is a national park on the east coast of Tasmania, Australia, 125 km northeast of Hobart. It occupies a large part of the Freycinet Peninsula, named after French navigator Louis de Freycinet, and Schouten Island.
Bordering the national park is the small settlement of Coles Bay, and the largest close town is Swansea. Freycinet contains part of the rugged Tasmanian coastline and includes the secluded Wineglass Bay, voted by several travel authorities as one of the world's ten best beaches. Famous features of the park include its red and pink granite formations and a series of jagged granite peaks in a line, called "The Hazards".
Founded in 1916, Freycinet is Tasmania's oldest park, along with Mount Field National Park.
Within the park Federal Hotels owns and operates Freycinet Lodge.