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Basilar-type migraine

Basilar-type migraine is a type of migraine with aura that causes a headache which usually starts in the occipital region which is in the lower back part of the brain. The symptoms that are believed to start in the brainstem, occipital cortex, an ...

                                               

Bass (fish)

For other uses of the word "bass," see bass. Bass is the name of some species of fish that are often caught for food or sport. There are freshwater bass and saltwater bass. Many bass live in or near North America. Bass are from the order of Perci ...

                                               

Basset Hound

The Basset Hound is a short-legged dog, of the hound family. Bassets are used in hunting to detect the scent of game. Their sense of smell for tracking is second only to that of the Bloodhound. The name Basset comes from French words meaning rath ...

                                               

Bear

Bears are a group of large mammals found in all over the world in many different habitats. They form the family Ursidae, in the suborder Caniformia of the order Carnivora. There are 8 living bear species. Family Ursidae: Bears Polar bear, Ursus m ...

                                               

Bearberry

Bearberry is the name for three species of small woody plants in the heath family, Ericaceae. They grow well in cold places. Each species has subspecies. They can grow well in poor soil. They have edible fruit. Their leaves are sometimes used for ...

                                               

Beard

A beard is the hair growing on the lower part of a mans face. The hair that grows on the upper lip of some men is a mustache. When a man has hair only below the lower lip and above the chin, it is called a soul patch. Some men have a lot of hair ...

                                               

Bearded vulture

The bearded vulture, also known as the lammergeier or lammergeyer, is a bird of prey. It is the only member of the genus Gypaetus. An Old World vulture, it forms a minor line of the Accipitridae with the Egyptian vulture, its closest living relat ...

                                               

Becks tree frog

Becks tree frog is a large tree frog from Papua New Guinea. Adult frogs are about 3.4 to 4.4 cm long. They are dark green or dark brown in color with darker spots and stripes. When dead frogs are saved for study, they have a white spot on their l ...

                                               

Bens Cat

Bens Cat was an American Thoroughbred racehorse. He was born in Maryland. He won multiple stakes races, including six victories in the Mister Diz Stakes and five in the Jim McKay Turf Sprint. He was a four-time Maryland-bred horse of the year. Be ...

                                               

Berry

The word berry is used for many different kinds of small fruits that have many seeds and can be used as food. Some examples are raspberry, strawberry, lingonberry and blueberry. When botanists talk about berries, they mean a simple fruit produced ...

                                               

Betta

Betta is a genus of fish. The Siamese fighting fish is a fish in this genus. Some species of betta like the Betta Splendens are very brightly coloured and can be purchased in a local pet store. Other species of betta are more rare. The males ofte ...

                                               

Bharal

The bharal or Himalayan blue sheep is a mammal of the Caprinae subfamily. The bharal is found in the high Himalayas of Nepal, Tibet, China, Kashmir, Pakistan, Bhutan and the Republic of India. The bharal has horns that grow upwards, curve out and ...

                                               

Biceps

The biceps brachii is a muscle in the arm. It has two parts, a long part and a short part. Using the elbow the muscle helps the movement of the forearm. When the muscle shortens, it bends the elbow and twists the forearm so that the palm faces up ...

                                               

Big-eyed tree frog

This article is about the frog from Tanzania. For the frog from New Guinea, see Ranoidea exophthalmia. The big-eyed tree frog, Amani Forest tree frog, vermiculated tree frog is a frog from the Eastern Arc Mountains and a few other places in Tanza ...

                                               

Binturong

A binturong is a large, rare mammal that lives in trees in the dense forests of southeast Asia. The binturong is also often called a bearcat because it looks like both a bear and a cat.

                                               

Biometrics

Biometrics is a field of study which aims to identify or recognise people based on traits they have. Given these traits, a system can be trained to recognise certain people, with a certain probability. Better training usually lowers the probabili ...

                                               

Biosphere

The biosphere includes everything living on Earth it is also known as ecosphere. Currently the biosphere has a biomass at around 1900 gigatonnes of carbon. It is not certain exactly how thick the biosphere is, though scientists predict that it is ...

                                               

Bioturbation

Bioturbation is the reworking of soils and sediments by animals or plants. It disturbs and changes sediment. Any animal living in the soil or on the bottom under water may disturb the sediment by moving it around. Burrowing, eating and defecation ...

                                               

Birch bark

Birch bark or birchbark is usually the bark of the paper birch tree or sometimes of similar trees such as gray birch. Birch bark is useful because it is strong and water-resistant. It is similar in some ways to cardboard. And can be easily cut, b ...

                                               

Bixa orellana

Bixa orellana is a shrub or small tree from the tropical area of the American continent. The name comes from the Nahuatl word for the shrub, achiotl. It is also known as Aploppas, and its first Tupi name urucu. It is grown there and in Southeast ...

                                               

Black rhinoceros

The black rhinoceros, is a species of rhinoceros. It lives in eastern and central Africa including Kenya, Tanzania, Cameroon, South Africa, Namibia, Zimbabwe, and Angola. The black rhinoceros is not actually black, but dark. It is a browser, with ...

                                               

Black-footed ferret

The black-footed ferret, is a type of weasel. It is also called the American polecat or prairie dog hunter. It is native to central North America. It is an endangered species.

                                               

Black-headed Weaver

The black-headed weaver, also known as the yellow-backed weaver, is a bird with a black head and golden body. The male black-headed weaver usually does the weaving, however, and the female sits for the eggs. The male stitches strips of straws to ...

                                               

Bladder

The urinary bladder is an organ in the human body in charge of storing urine. It is the part of our urinary system. All the liquids that are drunk go through the bladder. The bladder takes in the liquid in order for the body to work. The bladder ...

                                               

Blandings turtle

The Blandings turtle is characterized by its dark dome shaped upper shell, also known as the carapace, and its distinct bright yellow neck. The dark shell of the turtle is often scattered with yellow specks. The Blanding’s turtle is commonly refe ...

                                               

Bleating tree frog

The bleating tree frog is a frog from Australia. It lives in New South Wales and Queensland. This frog lives in lagoons and swamps not far from the ocean and sometimes in forests. It has a very loud call similar to that of a cicada. This frog gro ...

                                               

Blenny

A blenny is a member of a large suborder of teleost fish called the Blennioidei. The suborder has about 833 species in 130 genera. Blennies are generally small fish. They have long bodies some almost eel-like, and relatively large eyes and mouths ...

                                               

Blood pheasant

The blood pheasant is a small, short-tailed pheasant. It fairly common in the eastern Himalayas. Its range is across the northern parts of India, Nepal, Bhutan and China. The total number of birds is slowly decreasing. For this reason the species ...

                                               

Blood vessel

A blood vessel is a tube that carries blood in the circulatory system. Blood vessels that take blood away from the heart are arteries. Blood vessels that take blood back to the heart are veins. Capillaries are between veins and arteries and they ...

                                               

Blue Mountains tree frog

The Blue Mountains tree frog is a tree frog from Australia. It lives in New South Wales and Victoria. These frogs can be 7 cm long. They are dark brown and light brown with a dark stripe over the eye going down the body. Parts of the legs and mid ...

                                               

Blue Picardy Spaniel

The Blue Picardy Spaniel is a medium size gundog of the type called Spaniels. This breed was developed in France around the start of the 20th century.

                                               

Blue-baby syndrome

Blue-baby syndrome, or blue baby is usually caused by a heart defect which laymen often call "a hole in the heart". Normally, oxygenated blood from the lungs is separated from deoxygenated blood from other tissues. Because of a defect in the hear ...

                                               

Blue-throated hummingbird

The blue-throated hummingbird, is a species of hummingbird. It is a good sized hummingbird, 11.5 to 12.5 cm in length and 6 to 10 grams in weight. The blue-throated hummingbird is darkish green on the top of its body, blending to medium gray on i ...

                                               

Bluebird

The bluebirds are a group of medium-sized, mostly insectivorous or omnivorous Passerine birds. They are in the genus Sialia of the thrush family. Bluebirds are one of the few thrush genera in the Americas. They have blue, or blue and rose beige, ...

                                               

Bluefish

Bluefish is a kind of fish which occurs in the Atlantic Ocean, the Mediterranean, the Black Sea, the Indian Ocean and the Pacific. It is a pelagic fish, which means that it lives near the surface of the ocean. They can grow to a size of 150 centi ...

                                               

Bobcat

The bobcat is a fierce cat that lives in forests, swamps, mountains, prairie, and deserts in much of North America. Bobcats are generally nocturnal, but are most active at dawn and dusk. They spend the day in their den. They are very good climber ...

                                               

Bog turtle

The bog turtle is a turtle found only in the eastern United States. It is the smallest North American turtle. It measures about 10 centimetres long when fully grown. Bog turtles are threatened from loss of habitat and collection as pets.

                                               

Boiga

Boiga cynodon Boie, 1827 - Dog-toothed Cat Snake Boiga dendrophila occidentalis Brongersma, 1934 Boiga dendrophila levitoni Boiga angulata Peters, 1861 - Leyte Cat Snake Boiga dendrophila multicincta Boulenger, 1896 Boiga dendrophila Boie, 1827 B ...

                                               

Bolitoglossa

Bolitoglossa is a genus of salamanders. They are also called tropical climbing salamanders and web-footed salamanders. They are part of the Plethodontidae family. They live in Central America and South America. They are terrestrial amphibians.

                                               

Bombinatoridae

Bombinatoridae or fire-bellied toads is a family of toads. It includes two genus Barbourula and Bombina. They have bright colors which means that they are toxic.

                                               

Bone marrow

Bone marrow is a type of tissue that can be found in hollow bones of many animals including humans. In adults, the bone marrow in large bones makes new blood cells. Bone marrow makes up about 4% of an adult humans weight.

                                               

Bongo (antelope)

The bongo is a nocturnal antelope. It has two subspecies: the western or lowland bongo, and the eastern or mountain bongo. The western bongo is near threatened and the mountain bongo is critically endangered. Bongos eat plants. They live in fores ...

                                               

Boo (dog)

Boo was a Pomeranian dog that became an Internet celebrity. He was born in the San Francisco Bay Area. He had a popular Facebook page and four photo books were sold. As of March 2016, Boo had over 17.5 million Likes on Facebook. Boo was owned by ...

                                               

Booroolong frog

The booroolong frog is a tree frog from Australia. It lives in New South Wales and Victoria. Adult frogs are about 5 cm long. They can be brown or gray or green, with black marks. Their bellies are white. They live in or near streams 200 to 1000 ...

                                               

Borage

Borage, also known as starflower, is an annual herb. The flowers are perfect with five narrow, triangular-pointed petals. Flowers are most often blue in color, although pink flowers are sometimes examined. White flowered types are also grown.

                                               

Bottle tree

The bottle tree is a plant that has adapted to hot climates, such as the desert. They are called bottle trees because the shape of their trunk is a bottle shape. There are several different species including: Adansonia species, the baobabs; Adans ...

                                               

Bottlenose dolphin

A bottlenose dolphin or Atlantic bottlenose dolphin is a kind of dolphin. The name "bottlenose" comes from its snout being shaped like a bottle. It breathes through a hole on top of its head. Its brain is very large, and it is one of the most int ...

                                               

Botulism

Botulism is a rare disease caused by a bacteria called Clostridium botulinum. You can get it from eating meat that is not cooked properly. Babies can get it as well as adults. Symptoms include fever, vomiting, difficulty talking and weakness of t ...

                                               

Bougainvillea

Bougainvillea is a genus of flowering plants.it is often grown as gardening plant in warm climate. Bougainvilleas first came from South America. They are climbing plants grown for decoration in tropical countries, and in the southern United State ...

                                               

Bovinae

Bovinae is a subfamily of the even-toed ungulate family Bovidae. About 26 species of bovines belong to this subfamily. Bovines are herbivores, and they mostly eat grass.