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Kashmir flycatcher

The Kashmir flycatcher is a small passerine bird in the flycatcher family Muscicapidae. This species breeds in the north-west Himalayas in the Kashmir region of the Indian subcontinent. It is migratory and spends the winter in the hills of centra ...

                                               

Kawasaki disease

Kawasaki disease is a syndrome of unknown cause that results in a fever and mainly affects children under 5 years of age. It is a form of vasculitis, where blood vessels become inflamed throughout the body. The fever typically lasts for more than ...

                                               

Kentrosaurus

Kentrosaurus was a stegosaurian, whose intelligence was low among the dinosaurs. Kentrosaurus fossils have been found in Tendaguru in Tanzania, Africa.

                                               

Kimberly rocket frog

The Kimberly rocket frog is a frog from Australia. It lives in the Kimberly region in Western Australia. This frog is about 2.6 cm long. It has a triangular head and long front and hind legs. It is brown or gray in color with dark stripes down it ...

                                               

Kimberly rockhole frog

The Kimberly rockhole frog is a small frog from northern Australia. It lives in the Kimberly area. It was first found in the Prince Regent River by two plant scientists. Adult frogs are about 2.2 cm long. They live in rockholes and streams with r ...

                                               

King vulture

The king vulture, is a large bird found in Central and South America. This vulture lives predominantly in tropical lowland forests stretching from southern Mexico to northern Argentina. It is the only surviving member of the genus Sarcoramphus, a ...

                                               

Kingsnake

Kingsnakes are colubrid snakes. They are members of the genus Lampropeltis, which include milk snakes and four other species. There are many subspecies, and experts differ on their classification. These snakes are mostly found in North America an ...

                                               

Snail kite

The snail kite is a bird of prey. It is in the family Accipitridae, which also includes the eagles, hawks, and Old World vultures.

                                               

Kiwa hirsuta

Kiwa hirsuta is a crustacean that was first found living on the Pacific Ocean floor at 7200 feet deep, 900 miles south of Easter Island in March 2005. It is about 6 inches long, or 15 centimeters. It looks a little like a crab, but its long arms ...

                                               

Kleptomania

Kleptomania is an impulse control disorder. It is mental disorder with a frequent urge of stealing. Kleptomaniacs often steal many of the same thing and hoard, throw away or give away the things they steal. Some may not be aware that they have co ...

                                               

Klinefelter syndrome

Klinefelter syndrome, 47, XXY, or XXY syndrome is a genetic disorder where people have an extra number of X chromosomes. People who have Klinefelters Syndrome are often called "XXY Males", or "47, XXY Males".

                                               

Knee

The knee is the joint that links 4 of the upper and lower bones of the leg, which are called the femur, tibia, fibula and the patella. The knee joint is the largest joint in the body and is an extensive network of ligaments and muscles. Basically ...

                                               

Knife-footed frog

The knife-footed tree frog, olive water-holding frog or desert collared frog is a frog from Australia. It lives in the Western Australia, the Northern Territory, Queensland, New South Wales and South Australia. The adult male frog is 4.1 cm long ...

                                               

Knobbed whelk

The knobbed whelk is a gastropod mollusc which is protected by a thick, hard shell. It is large predatory sea snail, or whelk. This mollusc is found in shallow waters of the Atlantic Ocean off the east coast of North America from Massachusetts to ...

                                               

Kodkod

The kodkod is the smallest cat in the Americas, found in Chile and Argentina. It is sometimes called the guiña. They are closely related to the other small cats of South America, such as the Ocelot and the Margay. Kodkods live in mixed temperate ...

                                               

Kokoda big-eyed tree frog

The Kokoda big-eyed tree frog is a tree frog from Papua New Guinea. Scientists saw it in the Owen Stanley Mountains between Garaina and Mount Dayman, at 300 to 700 meters above sea level. It lives in forests and wetlands not near the ocean. Scien ...

                                               

Kookaburra

Kookaburras are birds of the genus Dacelo and are native to Australia and New Guinea. An adult kookaburra is generally 28–42 centimetres from the head to the tip of the tail.

                                               

Kuranda tree frog

The Kuranda tree frog is a frog from Australia. It lives in Queensland. Scientists have only seen it near the Barron River. The adult male frog is 3.5 to 4.5 cm long and the adult female frog is 5.7 to 6.9 cm long. They can be brown, tan, gray or ...

                                               

L-DOPA

Levodopa, or L -DOPA is an amino acid. In the body of mammals, it is made from Tyrosine in a process named synthesis. It also occurs in different plants. As such it can be used as a dietary supplement. L-Dopa is the precursor to the neurotransmit ...

                                               

Lagomorpha

Lagomorpha is a mammal order. It includes pikas, rabbits and hares. Although the lagomorphs look like rodents, they are actually not because they have four incisors on the upper jaw, not two like in rodents, and they eat plants, not meat too, lik ...

                                               

Lake trout

Lake trout is not a trout but a member of the freshwater char family. It lives mainly in lakes in northern North America. It is dark gray to olive green in color. It has light spots on their sides. Lake trout have a deeply forked tail. It is a sp ...

                                               

Lamellibrachia

Lamellibrachia is a genus of cold seep tube worms. These are related to giant tube worms. They live on the floor of the oceans, near cold seeps. There crude oil and methane leak out of the ocean floor. The worm forms a symbiosis with certain bact ...

                                               

Lamprey

Lampreys are jawless fish, whose adults are characterized by a toothed, funnel-like, sucking mouth. Lampreys belong to the order Petromyzontiformes. They live in coastal and fresh waters, and are found in temperate regions around the world.

                                               

Leaellynasaura

Leaellynasaura was a fast-running, plant-eating dinosaur that lived in Australia during the middle Cretaceous Period, roughly 115-110 million years ago. Australia was within the Antarctic Circle during the Cretaceous period, and it had a very lon ...

                                               

Leaf beetle

Leaf beetles are the family Chrysomelidae. There are over 35.000 species in more than 2.500 genera, so it is one of the largest and most common of all beetle families. Many subfamilies are recognized. Leaf beetles have a tarsal formula which appe ...

                                               

Leaf green tree frog

The leaf green tree frog, leaf green river tree frog or narrow fringed tree frog is a frog from Victoria and New South Wales. This frog lives in forests and grasslands, but it can also live in suburbs and cities. This frog lives near streams. The ...

                                               

Leg

A leg is something used to support things; to hold them up. Birds and humans have two legs. Some objects, for example tables and chairs, also have legs to hold them up. Animals normally have 2 or 4 legs vertebrates, which are animals with a backb ...

                                               

Legionnaires disease

Legionnaires disease is a form of pneumonia caused by any type of Legionella bacteria. Over 90% of cases are caused by Legionella pneumophila. The length of time between exposure to the bacteria and the appearance of symptoms is generally two to ...

                                               

Lemming

Lemmings and voles are the rats and mice of the Arctic. Lemmings have very short tails. They live underground in summer. Because the top soil freezes in the winter, they cannot burrow underground then, so they live under the snow during the colde ...

                                               

Lemon verbena

Lemon verbena is a type of flowering plant in the verbena family. It can also be called lemon beebrush. Its tiny flowers bloom purple or white in late summer.

                                               

Lens (anatomy)

The crystalline lens is a transparent, biconvex structure in the eye. With the cornea it helps to refract light to be focused on the retina. The lens changes shape. This changes the focal distance of the eye so that it can focus on objects at var ...

                                               

Leopard seal

The leopard seal, also known as the sea leopard, is the second largest species of seal in the Antarctic. It is most common in the southern hemisphere along the coast of Antarctica and on most sub-Antarctic islands, but can also be found on the co ...

                                               

Leopardus

Leopardus is a genus of small spotted cats that are native to Middle and South America. Very few species belonging to Leopardus are in the southern United States. Leopardus may be the oldest branch of the Felinae to go into the Americas, followed ...

                                               

Leporidae

Leporidae is a mammal family in the order Lagomorpha. It has about 60 species of rabbits and hares. The animals of the family Leporidae are called Leporids. The names "rabbit" and "hare" are not names of separate biological groups, but are "rando ...

                                               

Lepospondyl

The Lepospondyli are a large group of batrachomorph tetrapods from the Palaeozoic era. They are sometimes included in the Labyrinthodonts. They lived during the Carboniferous to the early Permian. There are six different groups. The Acherontiscid ...

                                               

Leptictidium

Leptictidium was a genus of small prehistoric eutherian from Eocene period. this extinct species of mammal lived alongside the dinosaurs, but died out when the tropical forests opened up. Leptictidium had long hind legs, and probably used only th ...

                                               

Leptodactylidae

Leptodactylidae is a family of frogs. They are believed to have been on Earth since the Cenozoic era or at the end of the Mesozoic. There are 1.100 species in 50 genera. The Eleutherodactylus is the largest genus with over 700 different species. ...

                                               

Lesothosaurus

Lesothosaurus was a small, early, lightly-built dinosaur. It was an herbivore and a fast, agile runner. It was small and lizard-like, about 3 feet long. It walked on two long legs, had four-toed feet, five-fingered hands, short arms, a long point ...

                                               

Lesueurs frog

LeSueurs frog, LeSuers tree frog or the stony creek frog is a tree frog from Australia. It lives in Australian Capital Territory, New South Wales and parts of Victoria. This frog lives in forests. It lives in dry forests and wet forests, such as ...

                                               

Lhasa Apso

The Lhasa Apso is a small breed of dog. It originated in Lhasa, Tibet, which it is named after. Male Lhasas generally weigh about 14 to 18 pounds, and female Lhasas weigh 12 to 14 pounds. Lhasas have developed a thick coat of fur because they wer ...

                                               

Libertia

Libertia is a genus of monocotyledenous plants in the family Iridaceae. There are 15 species in the genus. The plants can be found growing in the southern hemisphere.

                                               

Ligaria cuneifolia

Ligaria cuneifolia van Tigh, Blume) is a shrubby, glabrous plant. Its fruit a globular berry. It is commonly known as" liga” or" quintral de espino”.

                                               

Lions mane jellyfish

Lions mane jellyfish, also known as Hair Jelly and Sea Blubber, are a type of jellyfish which are mostly found in north Atlantic and north Pacific waters. The stings of these jellyfish are painful but not fatal. The species is found near the coas ...

                                               

Lipizzaner

The Lipizzaner was born in Carthage almost 2.000 years ago. The people who lived in Carthage mated their horses to the Vilano. There is also a mix of Arabian and Barbary blood.

                                               

Litoria chloristona

Litoria chloristona is a frog from Papua New Guinea. Scientists saw it near the Kikori River, from seal level to 500 meters above sea level. The adult male frog is about 2.0 to 2.4 cm long and the adult female is 2.4 to 2.7 cm long. It has large ...

                                               

Litoria eurynastes

Litoria eurynastes is a frog from Papua New Guinea. It is like Litoria bicolor but it is larger. Adult male frogs are 2.6 to 3.2 cm long. Adult female frogs are a little larger. Some adult frogs have teeth in their upper jaws. These are called vo ...

                                               

Litoria hilli

Litoria hilli is a frog from New Guinea. Male adult frogs are about 5.4-5.5 cm long and females are 4.7-4.9 cm long. Each frog has a spike on its nose and teeth on its upper jaw. Their front feet and hind feet are completely webbed and their toes ...

                                               

Litoria hunti

Litoria hunti is a tree frog from northern Papua New Guinea. The New Guineans call it "Wowo." Scientists have only seen it in Utai, which is in Sanduan Province, but they think it lives in many other places on the island of New Guinea. The adult ...

                                               

Litoria lodesdema

Litoria lodesdema is a frog from New Guinea. The adult male frog is yellow-green in color and about 2.2 cm long. It has a bronze or yellow stripe. These frogs have some webbing on their front feet and more webbing on their hind feet. They have be ...

                                               

Litoria megalops

Litoria megalops is a frog from Indonesia. Scientists saw it on the western half of the island of New Guinea, in Indonesias Papua Province. It is related to L. becki, L. micromembrana and L. modica. Male adult frogs are about 2.7 to 2.8 cm long a ...