Golden tabby tigers

In addition, another recessive gene may create a very unusual "golden tabby" colour variation, sometimes known as "strawberry". Golden tabby tigers have light gold fur, pale legs and faint orange stripes. Their fur tends to be much thicker than normal There are extremely few golden tabby tigers in captivity, around 30 in all. Like white tigers, strawberry tigers are invariably at least part Bengal. Both white and golden tabby tigers tend to be larger than average Bengal tigers

Tiger Woods

born December 30, 1975) is an American professional golfer whose achievements to date rank him among the most successful golfers of all time. Currently the World No. 1, he was the highest-paid professional athlete in 2007, having earned an estimated $122 million from winnings and endorsements. According to Golf Digest, Woods made $769,440,709 from 1996 to 2007, and the magazine predicts that by 2010, Woods will become the world's first athlete to pass one billion dollars in earnings. Woods has won fourteen professional major golf championships, the second highest of any male player, and 65 PGA Tour events, third all time. He has more career major wins and career PGA Tour wins than any other active golfer. He is the youngest player to achieve the career Grand Slam, and the youngest and fastest to win 50 tournaments on tour.

white tiger

A white tiger is a tiger with a genetic condition that nearly eliminates pigment in the normally orange fur although they still have dark stripes. This occurs when a tiger inherits two copies of the recessive gene for the paler coloration: pink nose, pink paws, grey-mottled skin, ice-blue eyes, and white to cream-colored fur with black, grey, or chocolate-colored stripes. Mr. H.E. Scott of the Indian police gave this description of a captive white tiger's eyes-"The colorings of the eyes are very distinct. There is no well defined division between the yellow of the comex and the blue of the iris. The eyes in some lights are practically colorless merely showing the black pupil on a light yellow background (Another genetic condition also makes the stripes of the tiger very pale; white tigers of this type are called snow-white.)White tigers do not constitute a separate subspecies of their own and can breed with orange ones, although all of the resulting offspring will be heterozygous for the recessive white gene, and their fur will be orange. The only exception would be if the orange parent was itself already a heterozygous tiger, which would give each cub a 50% chance of being either double-recessive white or heterozygous orange

Common whitetail Dragonfly

Like many dragonfly species, the name of the dragonfly, the common whitetail, pretty much describes it.

Common whitetails (Plathemis lydia) are among the most ordinary dragonflies across the United States.

They are part of the better skimmer family, and merely one of two members of the Plathemis genus of whitetails.

The adult male, sports a white tail. The picture above shows a gray white abdomen and yellow spots on the rear of the head.

Females of the species split a similar abdomen pattern, without the white cover.

They can easily be mistaken for eight-spotted skimmers because they also contain eight spots on their wings, so the white spots the length of the sides of the abdomen serve as better field recognition clues.

Blue Dasher

The Blue Dasher (Pachydiplax longipennis) is wide all through the United States, along with being the sole representative of the Pachydiplax genus.

Males are characterized by blue eyes, a blue abdomen and white striped thorax.

Like many of the Libellulidae females, the female blue dasher is brown.

Leaf - cutter bees

• Leafcutter bees are native bees, significant as pollinators.

• Leafcutter bees are not violent and contain a mild sting that is used only when they are handled.

• Leafcutter bees cut the leaves of plants. The cut leaf fragments are used to shape nest cells.

• Leafcutter bees nest in soft, rotted wood or in the stems of big, pithy plants, such as roses.

Leafcutter bees are significant native insects of the western United States. They use cut leaf fragments to build their nest cells. They often are necessary pollinators of wild plants. Some leafcutter bees are even semi domesticated to help create alfalfa seed. However, their habit of leaf cutting, as well as their nesting in soft wood or plant stems, frequently attracts attention and concern.

Anatomy

In humans, the trachea divides into the two main bronchi that enter the roots of the lungs. The bronchi continue to divide within the lung, and after multiple divisions, give rise to bronchioles. The bronchial tree continues branching until it reaches the level of terminal bronchioles, which lead to alveolar sacs. Alveolar sacs are made up of clusters of alveoli, like individual grapes within a bunch. The individual alveoli are tightly wrapped in blood vessels, and it is here that gas exchange actually occurs. Deoxygenated blood from the heart is pumped through the pulmonary artery to the lungs, where oxygen diffuses into blood and is exchanged for carbon dioxide in the hemoglobin of the erythrocytes. The oxygen-rich blood returns to the heart via the pulmonary veins to be pumped back into systemic circulation.


1:Trachea 2:Pulmonary artery 3:Pulmonary vein 4:Alveolar duct 5:Alveoli 6:Cardiac notch 7:Bronchioles 8:Tertiary bronchi 9:Secondary bronchi 10:Primary bronchi 11:LarynxHuman lungs are located in two cavities on either side of the heart. Though similar in appearance, the two are not identical. Both are separated into lobes, with three lobes on the right and two on the left. The lobes are further divided into segments, then lobules, hexagonal divisions of the lungs that are the smallest subdivision visible to the naked eye. The connective tissue that divides lobules is often blackened in smokers and city dwellers. The medial border of the right lung is nearly vertical, while the left lung contains a cardiac notch. The cardiac notch is a concave impression molded to accommodate the shape of the heart. Lungs are to a certain extent 'overbuilt' and have a tremendous reserve volume as compared to the oxygen exchange requirements when at rest. This is one of the reasons that individuals can smoke for years without having a noticeable decrease in lung function while still or moving slowly; in situations like these only a small portion of the lungs are actually perfused with blood for gas exchange. As oxygen requirements increase due to exercise, a greater volume of the lungs is perfused, allowing the body to match its CO2/O2 exchange requirements.

The environment of the lung is very moist, which makes it hospitable for bacteria. Many respiratory illnesses are the result of bacterial or viral infection of the lungs.