Tag - nature

Snake Venom

Snake venom is highly modified saliva. The venom is part of a whole: the apparatus, which is made up of venom glands that synthesize venom; and an injection system, consisting of modified fangs with which to make the venom penetrate into a prey item or a p...

Morning Glory Cloud

The Morning Glory cloud is a rare meteorological phenomenon occasionally observed in different locations around the world. The southern part of Northern Australia's Gulf of Carpentaria is the only known location where it can be predicted and observed on a ...

Lyrebird

A Lyrebird is either of two species of ground-dwelling Australian birds, most notable for their superb ability to mimic natural and artificial sounds from their environment. Lyrebirds have unique plumes of neutral coloured tailfeathers. Lyrebirds are among...

Nudity

Nudity is the state of wearing no clothing. The wearing of clothing is exclusively a human characteristic. The amount of clothing worn depends on functional considerations (such as a need for warmth or protection from the elements) and social consideration...

Hydrothermal Vent

A hydrothermal vent is a fissure in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots. Hydrotherma...

Peregrine Falcon

The Peregrine Falcon (Falco peregrinus), also known as the Peregrine, and historically as the "Duck Hawk" in North America, is a widespread bird of prey in the family Falconidae. A large, crow-sized falcon, it has a blue-gray back, barred white underparts,...

Cordyceps

Cordyceps is a genus of ascomycete fungi that includes about 400 described species. All Cordyceps species are endoparasitoids, mainly on insects and other arthropods; a few are parasitic on other fungi. The Latin etymology describes cord as "club", ceps as...

Ecdysis

Ecdysis is the moulting of the cuticula in arthropods and related groups (Ecdysozoa). Since the cuticula of these animals is also the skeletal support (the exoskeleton) of the body and is inelastic, it is shed during growth and a new, larger covering is fo...

Polydactyl Cat

A polydactyl cat is a cat with a congenital physical anomaly, with more than usual number of toes on one or more of its paws as a result of a cat body type genetic mutation. In animals including humans, polydactyly (or polydactylism, also known as hyperdac...

Coconut Palm

The coconut palm, Cocos nucifera, is a member of the family Arecaceae (palm family). It is the only accepted species in the genus Cocos. The term coconut can refer to the entire coconut palm, the seed, or the fruit, which is not a botanical nut. The spelli...

Ring Tailed Lemur

The Ring-tailed Lemur (Lemur catta) is a large Strepsirhine primate and the most recognized lemur due to its long, black and white ringed tail. It belongs to Lemuridae, one of four lemur families. It is the only member of the Lemur genus. Like all lemurs i...

Serval

The serval, Leptailurus serval, is a medium-sized African wild cat. Modern molecular DNA analysis indicates that servals maintain their own unique lineage descending from the same Felid ancestor as the lion, and though the serval shares common traits with ...

Banyan Tree

A banyan (also banian) is a fig that starts its life as an epiphyte when its seeds germinate in the cracks and crevices on a host tree (or on structures like buildings and bridges). "Banyan" often refers specifically to the Indian Banyan or Ficus benghalen...

Skunk

Skunks are mammals best known for their ability to secrete a liquid with a strong, foul-smelling odor. General appearance ranges from species to species, from black-and-white to brown or cream colored. There are 10 species of skunks, which are divided into...

Grizzly Bear

The grizzly bear (Ursus arctos horribilis), also known as the silvertip bear or just the grizzly, is a subspecies of brown bear (Ursus arctos) that generally lives in the uplands of western North America. This subspecies is thought to descend from Ussuri b...

Lava

Lava is molten rock expelled by a volcano during eruption. When first expelled from a volcanic vent, it is a liquid at temperatures from 700 °C to 1,200 °C (1,300 °F to 2,200 °F). Although lava is quite viscous, with about 100,000 times the viscosity of wa...

Great Barrier Reef

The Great Barrier Reef is the largest coral reef system on Earth, composed of over 2,900 individual reefs and 900 islands stretching for over 3,000 kilometres (1,600 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is l...

Earthquake

An earthquake (also known as a quake, tremor, temblor or seismic activity) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. Earthquakes are measured with a seismometer; a device which also records is known as a s...

Damselfish

Damselfish comprise the family Pomacentridae except those of the genera Amphiprion and Premnas. They can grow up to 14 inches (36 cm) long. While most are marine, a few species inhabit the lower stretches of rivers in freshwater. Damselfish usually have br...

Captive Breeding

Captive breeding is the process of breeding animals in human controlled environments with restricted settings, such as wildlife reserves, zoos and other conservation facilities; sometimes the process is construed to include release of individual organisms ...

Eiger

The Eiger is a mountain in the Bernese Alps in Switzerland. It is the easternmost peak of a ridge crest that extends across the Mönch to the Jungfrau at 4,158 m. The northern side of the mountain rises about 3,000 m (9,800 ft) above Grindelwald and other i...

Peacock Spider

The Peacock spider or Gliding spider (Maratus volans) is a species of jumping spider. Octavius Pickard-Cambridge noted in his original description that "it is difficult to describe adequately the great beauty of the colouring of this spider". The red, blue...

Clearcutting

Clearcutting, or clearfelling, is a controversial forestry/logging practice in which most or all trees in an area are uniformly cut down. Clearcutting, along with shelterwood and seed tree harvests, is used by foresters to create certain types of forest ec...

Mount Hua

Mount Hua or Hua Shan in Chinese is located in Shaanxi Province, about 120 kilometres east of the city of Xi'an, near the city Huayin in China. Also known as Xiyuè, Western Great Mountain, it is the western mountain of China's Five Sacred Taoist Mountains,...

Arctic Fox

The Arctic Fox, also known as the White Fox, Polar Fox or Snow Fox, is a small fox native to Arctic regions of the Northern Hemisphere and is common throughout the Arctic tundra biome. The Arctic Fox lives in some of the most frigid extremes on the planet....

1958 Lituya Bay Megatsunami

A megatsunami is defined as a wave reaching more than 100 meters (328 feet) in the deep ocean. The highest wave ever recorded occurred on July 9, 1958 in Lituya Bay, Alaska reaching a height of 524 meters (1,720 feet), 250 feet taller than the Empire State...

Christmas Island Red Crab

The Christmas Island red crab, Gecarcoidea natalis, is a species of terrestrial crab endemic to Christmas Island in the Indian Ocean. Although restricted to a relatively small area, it is estimated that up to 120 million red crabs may live there, making it...

Atlantic Goliath Grouper

The Atlantic goliath grouper or itajara (Epinephelus itajara) is a large saltwater fish of the grouper family. It is commonly known as the jewfish; however, in 2001 the Committee on Names of Fishes, a seven-member joint committee of the American Society of...

Bullfrog

The American Bullfrog, often simply known as the Bullfrog in Canada and the United States, is an aquatic frog, a member of the family Ranidae, or “true frogs”, native to much of North America. This is a frog of larger, permanent water bodies, swamps, ponds...

Sailing Stones

The sailing stones are a geological phenomenon where rocks move in long tracks along a smooth valley floor without human or animal intervention. They have been recorded and studied in a number of places around Racetrack Playa, Death Valley, where the numbe...

Saguaro

The saguaro is a large, tree-sized cactus species in the monotypic genus Carnegiea. It is native to the Sonoran Desert in Arizona, the Mexican state of Sonora, and an extremely small area of California. The saguaro blossom is the state flower of Arizona. S...

Emperor Penguin

The Emperor Penguin is the tallest and heaviest of all living penguin species and is endemic to Antarctica. The male and female are similar in plumage and size, reaching 122 cm (48 in) in height and weighing anywhere from 22 to 45 kg (48 to 99 lb). The do...

Giant Panda

The Giant Panda is a bear native to central-western and southwestern China. The Giant Panda was previously thought to be a member of the Procyonidae (raccoon) family. It is easily recognized by its large, distinctive black patches around the eyes, over the...

Daddy Long Legs

Harvestmen are arachnids belonging to the order Opiliones. As of 2006, over 6,400 species of harvestmen have been discovered worldwide, although the real number of extant species may exceed 10,000. The order Opiliones can be divided into four suborders: Cy...

Australian Funnel Web Spider

Australian funnel-web spiders are very venomous spiders of the family Hexathelidae, represented by an estimated 40 species of Hadronyche and the sole species of the genus Atrax. A. robustus, the notoriously dangerous Sydney funnel-web spider. Funnel-webs a...

Red Rock Crab

The crab Grapsus grapsus (known variously as "red rock crab", "abuete negro", and, together with other crabs such as Percnon gibbesi, as "Sally Lightfoot") is one of the most common crabs along the western coast of South America. It can also be seen along ...

Osprey

The Osprey, sometimes known as the sea hawk, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching 60 centimetres (24 in) in length with a 2m wingspan. It is brown on the upperparts and predominantly greyish on the head and underparts, wit...

Desert Tortoise

The desert tortoise is a species of tortoise native to the Mojave desert and Sonoran desert of the southwestern United States and northern Mexico. This tortoise may attain a length of 10 to 14 inches, with males being slightly larger than females. Male to...

Pit Bull

Pit Bull is a term commonly used to describe several breeds of dog in the molosser family. Many breed-specific laws use the term "pit bull" to refer to the modern American Pit Bull Terrier, American Staffordshire Terrier, and Staffordshire Bull Terrier, an...

Mount Vesuvius

Mount Vesuvius is a stratovolcano east of Naples, Italy. It is the only volcano on the European mainland to have erupted within the last hundred years, although it is not currently erupting. The two other volcanoes in Italy, are located on islands. Mount V...

Saltwater Crocodile

Saltwater or estuarine crocodile (Crocodylus porosus) is the largest of all living reptiles. It is found in suitable habitats throughout Southeast Asia, Northern Australia, and the surrounding waters. An adult male saltwater crocodile's weight is 400 to 1,...

African Grey Parrot

The African Grey Parrot (Psittacus erithacus) is a medium-sized parrot endemic to primary and secondary rainforest of West and Central Africa. Experts regard it as one of the most intelligent birds. They feed primarily on palm nuts, seeds, fruits, leafy ma...

Rat

The best-known rat species are the Black Rat (Rattus rattus) and the Brown Rat (Rattus norvegicus). The group is generally known as the Old World rats or true rats, and originated in Asia. Rats are bigger than most Old World mice, which are their relatives...

Narwhal

The narwhal is a medium-sized toothed whale that lives year-round in the Arctic. One of two species of whale in the Monodontidae family, along with the Beluga whale, the narwhal males are distinguished by a characteristic long, straight, helical tusk exten...

Venus Fly Trap

The Venus Flytrap, Dionaea muscipula, is a carnivorous plant that catches and digests animal prey—mostly insects and arachnids. Its trapping structure is formed by the terminal portion of each of the plant's leaves and is triggered by tiny hairs on their i...

Blue Footed Booby

The Blue-footed Booby (Sula nebouxii) is a bird in the Sulidae family which comprises ten species of long-winged seabirds. The natural breeding habitat of the Blue-footed Booby is tropical and subtropical islands off the Pacific Ocean, most famously, the G...

K2

K2 is the second-highest mountain on Earth (after Mount Everest). With a peak elevation of 8,611 metres (28,251 ft), K2 is part of the Karakoram range, and is located on the border between the Taxkorgan Tajik Autonomous County of Xinjiang, China and Gilgit...

Rip Current

A rip current is a strong channel of water flowing away from the shoreline, typically through the surf line, and can occur on any shore that has breaking waves. The water flows seaward from near the shore. Typical flow is at 0.5 meters per second (1–2 feet...

Green Anaconda

The Green Anaconda is one of the world's longest snakes, reaching 5–7 m (18-23ft) long (known to be exceeded only by the reticulated python Python reticulatus). Reports of anacondas 35-40 feet also exist but such claims need to be regarded with caution as ...

Patterdale Terrier

The Patterdale Terrier is a small working dog. In the UK it is not a dog type that was initially recognised by the UK Kennel Cub as a pedigree. As such the Patterdale has been bred as a working dog, so the appearance can differ widely. This phenomenon is c...

Magma

Magma is molten rock that is found beneath the surface of the Earth, and may also exist on other terrestrial planets. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma often collects in a magma chamber inside a volcano. ...

Honey Badger

The honey badger is distributed throughout most of Africa and western and south Asian areas of Baluchistan (eastern Iran), southern Iraq, Pakistan and Rajasthan (western India). It is the only species in the genus Mellivora and the subfamily Mellivorinae. ...

Hyacinth Macaw

Native to central and eastern South America, the Hyacinth Macaw, or Hyacinthine Macaw, is the largest macaw and the largest flying parrot species in the world, though the flightless Kakapo of New Zealand can outweigh it at up to 3.5 kg. In terms of length ...

Black Ice

Black Ice (or glare ice) is ice frozen with few air bubbles trapped inside, making it highly transparent. This type of ice appears in the color of the material beneath it, often wet asphalt or a darkened pond. Because it may be difficult to see, it present...

Antipredator Adaption

Antipredator adaptations are evolutionary adaptations developed over time, which assist prey organisms in their constant struggle against their predators. There are several ways antipredator adaptations can be classified, such as behavioral or non-behavior...

Golden Eagle

The Golden Eagle is one of the best known birds of prey in the Northern Hemisphere. Like all eagles, it belongs to the family Accipitridae. Once widespread across the Holarctic, it has disappeared from many of the more heavily populated areas. Despite bei...

Poison Dart Frog

Poison dart frog (also dart-poison frog, poison frog or formerly poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to Central and South America. Unlike most frogs, these species are active during the day...

Hyena

Hyenas seem to have originated 26 million years ago from arboreal ancestors bearing similarities to the modern Banded Palm Civet. Plioviverrops, one of the earliest hyenas, was a lithe civet-like creature that inhabited Eurasia 20-22 million years ago. Det...

Niagara Falls

The Niagara Falls are voluminous waterfalls on the Niagara River, straddling the international border between the Canadian province of Ontario and the U.S. state of New York. The falls are 17 miles north-northwest of Buffalo, New York and 75 miles south-s...

Spider Monkey

Spider monkeys of the genus Ateles are New World monkeys in the subfamily Atelinae, family Atelidae. Like other atelines, they are found in tropical forests of Central and South America, from southern Mexico to Brazil. The genus contains seven species incl...

Goblin Shark

The goblin shark, Mitsukurina owstoni, is a deep-sea shark, the sole living species in the family Mitsukurinidae. The most distinctive characteristic of the goblin shark is the unorthodox shape of its head. It has a long, trowel-shaped, beak-like rostrum o...

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