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Pinocchio frog

The Pinocchio frog or northern Pinocchio treefrog is a frog from the island of New Guinea. It lives in the Foja Mountains in Indonesia. This frog is green, brown and yellow in color. The male frog has a point on the end of its nose. The point can ...

                                               

Pipidae

The Pipidae is a family of frogs. They do not have tongues. There are over 30 species of Pipidae frogs. They are found in tropical places in South America and Africa.

                                               

Pipit

The pipits are a cosmopolitan genus Anthus, of small passerine birds with medium to long tails. Along with the wagtails and longclaws, the pipits make up the family Motacillidae. The genus is widespread, occurring across most of the world, except ...

                                               

Piranha

The piranha is a ferocious, schooling, fresh-water fish. It is native to warm lowland streams and lakes in South America, east of the Andes Mountains. Piranhas have been introduced to other places, including Northern Brazil, Hawaii, and parts of ...

                                               

Pistosaurus

Pistosaurus is a genus of marine sauropterygian reptiles. It is a Nothosaur, a relative of the plesiosaurs. Pistosaurus was a advanced nothosaur-like body with a plesiosaur-like head. Is presently known only from the Middle Triassic. Even if it i ...

                                               

Pit bull

Pit bull is a word used to describe several breeds of dog. This includes the American Pit Bull Terrier, American Staffordshire Terrier, American Bully and Staffordshire Bull Terrier, and dogs with a mix of these breeds. In some locations, the mod ...

                                               

Plains brown tree frog

The plains brown tree frog, plain tree frog or Victoria frog is a frog from Australia. It lives in southern Australia just north of Melbourne, in Victoria and New South Wales. The adult male is 2.1 to 2.8 cm long and the adult female is 3.4 to 3. ...

                                               

Platelet

A platelet is a cell fragment that circulates in the blood. Platelets are involved in hemostasis through the making of blood clots. A low platelet count can cause a person to bleed without their blood clotting. A high platelet count can increase ...

                                               

Plesiosaurus

Plesiosaurus was a large fossil marine reptile, a genus in the order Plesiosauria. The first specimen discovered by Mary Anning in 1820-21 was missing its skull. She found it on the Jurassic Coast of Lyme Regis, Dorset, England. In 1823 she found ...

                                               

Pneumoconiosis

Pneumoconiosis is a form of occupational lung disease that is not infective. It is a progressive degenerative disorder. It is caused by air pollution in the form of tiny particles. It was common among coal miners, who inhaled coal dust regularly. ...

                                               

Poaceae

Poaceae or Gramineae are the "true" grasses. They are a large family of Monocot flowering plants. There are about 10.000 species and 660 genera, and they are one of most ecologically and economically important of all plant families.Rushes, and se ...

                                               

Poanes

Poanes niveolimbus Mabille, 1889 – Snow-fringed Skipper Poanes viator Edwards, 1865 – Broad-winged Skipper Poanes melane Edwards, 1869 – Umber Skipper Poanes massasoit Scudder, 1863 – Mulberry Wing Poanes benito Freeman, 1979 – Benitos Skipper Po ...

                                               

Polycystic ovary syndrome

Polycystic ovary syndrome is one of the most prevalent female endocrine health matters. PCOS is a complex and heterogeneous problem of uncertain etiology, although there is major evidence that the PCOS can be classified as a genetic health proble ...

                                               

Polymerase chain reaction

Polymerase chain reaction is a way to make many copies of a sequence of DNA. It is done in a lab, using an enzyme called DNA polymerase. It is called chain reaction because the result of one cycle is used immediately for the next cycle. This allo ...

                                               

Pomeranian (dog)

The Pomeranian is a dog from Pomerania. Queen Victoria, Queen Charlotte, and Josephine de Beauharnais all owned Pomeranians. Pomeranians are sometimes called Zwergspitz which is a Dwarf Spitz and Toy German Spitz in different countries. The Pomer ...

                                               

Porcupine caribou

The porcupine caribou or Grants caribou is a subspecies of the caribou. They are found in Alaska and parts of Canada. It resembles the subspecies, barren-ground caribou, and is sometimes included in it. Migratory caribou herds are named after the ...

                                               

Porphyria

Porphyria is the name for certain medical conditions or diseases, which have been known since the days of Hippocrates. Those who suffer from the disease can not make certain substances in the blood. They have disorders of certain enzymes which no ...

                                               

Porpoise

Finless porpoise Neophocaena phocaenoides Burmeisters porpoise Phocoena spinipinnis Harbour porpoise phocoena Vaquita Phocoena sinus Dalls porpoise Phocoenoides dalli Family Phocoenidae Spectacled porpoise Phocoena dioptrica

                                               

Prader–Willi syndrome

Prader–Willi syndrome is a rare but major genetic condition that involves being overweight, substandard sexual development and low intelligence. This problem also puts those affected under risk for diabetes mellitus. People with Prader-Willi synd ...

                                               

Prawn

Dendrobranchiata is a suborder of decapod crustaceans, and contains shrimp and prawn. Dendrobranchiata are commercially fished and are used for cooking. The difference between prawns and shrimp is usually that prawns are larger than shrimps. Praw ...

                                               

Predator X

Predator X is a giant species of pliosaur discovered in 2006 by Norwegian scientist, Jorn Hurum. The skull was dug up in 2008 and told a lot about this animal. As far as scientists are concerned this animal had a bite force that was 4 times more ...

                                               

Prion

A prion is an infectious protein. The word is short for "proteinaceous infectious particles". All known prion diseases in mammals affect the structure of the brain or other neural tissue. At present they cannot be treated and always end in death. ...

                                               

Procellariiformes

Procellariiformes is an order of seabirds that comprises four families: the albatrosses, petrels and shearwaters, storm petrels, and diving petrels. They have a cosmopolitan distribution across the worlds oceans, with the highest diversity being ...

                                               

Procyonidae

Family Procyonidae Genus Potos: Kinkajous Subfamily Potosinae Kinkajou, Potos flavus Allens Olingo, Bassaricyon alleni Chiriqui Olingo, Bassaricyon pauli Bushy-tailed Olingo or Gabbis Olingo, Bassaricyon gabbii Beddards Olingo, Bassaricyon beddar ...

                                               

Prosencephalon

The prosencephalon, the mesencephalon, and rhombencephalon are the three primary portions of the brain of vertebrates. They develop very early during development of the central nervous system. When the embryonic prosencephalon fails to divide the ...

                                               

Prostate

The prostate is a gland of the male body that adds part of the fluid to semen. A healthy human prostate is slightly larger than a walnut. It surrounds the urethra just below the urinary bladder. Prostate cancer is one of the most common cancers a ...

                                               

Protea cynaroides

Protea cynaroides is a flower. It is the largest member of the Protea genus and is part of the fynbos. The plant mainly grows in South Africa, particularly from the Cederberg to Port Elizabeth. The king protea is the national flower of South Afri ...

                                               

Protease

A protease is a digestive enzyme. It breaks down long chains of proteins into shorter amino acids. Proteases have evolved a number of times. We know this because different kinds of protease can do the same reaction in completely different ways. P ...

                                               

Protoclepsydrops

Protoclepsydrops was an early amniote from about 314 million years ago. Its remains were found at the Joggins Fossil Cliffs World Heritage Site. The dating of this site has been debated, with dates from 320 million years ago to 305 mya being sugg ...

                                               

Protocoleoptera

The Protocoleoptera are the earliest beetles in the fossil record. "The oldest stem-group coleopterid is early Permian, 280 mya million years ago. true Coleoptera did not appear until the Triassic 230mya". Interpreting the early fossi record of b ...

                                               

Protoplasm

Protoplasm is an old term, which means the living substance that makes up a cell. It is no longer much used. Biologists prefer to talk about the cytoplasm and the cell nucleus. In plant cells, it is surrounded by a cell wall. In animal cells, the ...

                                               

Provincial birds of Pakistan

Pakistani Provincial birds are Pakistan endemic avifauna that have gained the status as subnational birds symbol that represent Pakistan and describe Pakistani biodiversity, and are a Union of 7 federative units, including one federal territory. ...

                                               

Prunus virginiana

Chokecherries, also known as the bitter-berry, Virginia bird cherry, and western chokecherry, are shrubs or small trees, which grow to around 4.9 m. Their leaves are oval with coarse, sharp edges. The flowers grow about 38.1–76.2 cm 15–30 in long ...

                                               

Pseudopodia

Pseudopodia are temporary and cytoplasm-filled parts of the cell membrane that are able to change their form in order to move. They are used in some eukaryotic cells to move around or to eat. Most cells that do this are called amoeboids. The amoe ...

                                               

Psittacosis

Psittacosis is a bacterial disease that can be caught from birds such as parrots, pigeons, and parakeets. The disease is not common, with only 50 reported cases in the United States each year. Psittacosis usually gives flu-like symptoms, such as ...

                                               

Psocoptera

Psocoptera are an order of winged insects that are commonly known as booklice, barklice or barkflies. They first appeared in the Permian period, 295–248 million years ago. They are often regarded as the most primitive of the hemipterans. Their na ...

                                               

Psoriasis

Psoriasis is a skin condition where cells grow at a faster rate than they can be shed, causing excess skin to build up and form scaly patches on the body. The condition: It appears to be a buildup of dry skin on your body. You can have it at any ...

                                               

Pterois

Pterois, also known as lionfish, is a genus of venomous marine fish. They are found mostly in the Indo-Pacific. Pterois is characterized by warning coloration with red, white, creamy, or black bands, showy pectoral fins and venomous spiky fin ray ...

                                               

Pterygota

Pterygota is a subclass of insects that includes the winged insects. It also includes insect orders that are secondarily wingless. That means insect groups whose ancestors once had wings but that have lost them later in evolution. The Pterygota t ...

                                               

Pubic hair

Pubic hair is hair which covers the area around the sex organs. It is generally darker in color and stronger in texture than other hair found on the human body. It is caused by the rising levels of androgens during puberty. Pubic hair is a second ...

                                               

Puffin

Puffins are sea birds that can fly and swim. These squat birds live in the cold sea of the northern Arctic Ocean. In the breeding season they move to the coast, where they dig burrows on cliffs and make a nest in the burrow.

                                               

Pulmonary artery

The pulmonary artery is a blood vessel that connects the heart to the lungs. The pulmonary artery carries blood that does not have much oxygen. The blood from throughout the body is taken into the heart by the right atrium into the right ventricl ...

                                               

Pulse

A pulse is a throbbing of blood vessels as blood goes through them. You can feel someones pulse in their wrist, thumb or neck, where vessels are closer to the skin. A normal pulse is below 100 beats per minute. Our pulse quickens when we exercise ...

                                               

Pygmy hippopotamus

The pygmy hippopotamus is a large mammal native to the forests and swamps of West Africa. The specific name liberiensis means "of Liberia", as this is where most live. The pygmy hippo is reclusive and nocturnal. It is one of only two living speci ...

                                               

Pygmy killer whale

The Pygmy Killer Whale is a mammal of the oceanic dolphin family. It is small, and rarely seen. Its name is because it shares some features with the Killer Whale. They are not closely related.

                                               

Pygmy marmoset

Pygmy marmosets are the smallest marmosets and one of the smallest of all primates. They inhabit Brazil, Ecuador, Peru and Colombia. Most pygmy marmosets lives in troops of two to nine individuals, with a dominant male, a breeding female, and up ...

                                               

Quagga mussel

The Quagga mussel is a freshwater mussel. Originally it occurred in the drainage basin of the Dnieper river, mostly in Ukraine. The mussel is named after the Quagga, an extinct species of zebra. The mussels live for three to five years. Since abo ...

                                               

Quail

Quail is a collective name for several genera of mid-sized birds in the order Galliformes. The birds in this group are often referred to as "fowl". Old World quail are in the family Phasianidae, and New World quail are found in the family Odontop ...

                                               

Queensland lungfish

The Queensland lungfish, also known as the Australian lungfish, Burnett salmon and barramunda, is one of the surviving species of lungfish. It is native only to the Mary and Burnett River systems of the Australian state of Queensland. The species ...

                                               

Quetzal

A quetzal is a brightly colored bird in the trogon family. They are found in forests and woodlands, especially in humid highlands. These birds live in the Americas. The word "quetzal" was first used for the resplendent quetzal, a famous long-tail ...