Tetra

A tetra is one of several species of small freshwater fish from Africa, Central America and South America belonging to the biological family Characidae and to its former subfamilies Alestidae (the "African tetras") and Lebiasinidae. The Characidae are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins. Many of these, such as the neon tetra (Paracheirodon innesi), are brightly colored and easy to keep in captivity. Consequently, they are extremely popular for home aquaria.

Tetra is no longer a taxonomic, phylogenetic term. It is short for Tetragonopterus, a genus name formerly applied to many of these fish, which is Greek for "square-finned" (literally, four-sided-wing).

Because of the popularity of tetras in the fishkeeping hobby, many unrelated fish are commonly known as tetras, including species from different families. Even vastly different fish may be called tetras. For example, payara (Hydrolycus scomberoides) is occasionally known as the "sabretooth tetra" or "vampire tetra".

Princess Zelda

Princess Zelda (Japanese: ゼルダ姫, Hepburn: Zeruda-Hime) is the name of a fictional character in Nintendo's The Legend of Zelda video game series, who was introduced in its original entry in 1986. The name has applied to many female members of Hyrule's royal family, which includes several distinct characters in Hyrule legend.

Though she is the eponymous character, her story role is often that of donor or damsel in distress. The player instead controls Link, the series' central protagonist, and usually focuses on defeating Ganon (or Ganondorf), the series' main antagonist. Many Zelda games adopt the classic princess-and-dragon premise of chivalric literature: Zelda is usually kidnapped or imprisoned by Ganon, prompting Link to come to her rescue. Some games in the series have also emphasized Zelda's magical abilities and importance to the functioning of Hyrule, demonstrating that she is more than capable of taking care of herself. In several games, she is one of the Sages, whose work is essential to defeating Ganon; in others, she adopts alternative personae in order to take a more active role in her kingdom; and in some, she is a self-sacrificing princess regnant. Zelda's alter egos include the ninja Sheik in Ocarina of Time and the pirate Tetra in The Wind Waker and Phantom Hourglass.

Tetra (disambiguation)

Tetra is any of several species of freshwater fish in the family Characidae from Africa, Central America and South America.

Tetra may also refer to:

See also

Walking

Walking (also known as ambulation) is one of the main gaits of locomotion among legged animals, and is typically slower than running and other gaits. Walking is defined by an 'inverted pendulum' gait in which the body vaults over the stiff limb or limbs with each step. This applies regardless of the number of limbs - even arthropods, with six, eight or more limbs, walk.

In the United Kingdom and Ireland, the term walking includes activities such as walking in a park and trekking in the Alps. However, in Canada and the United States the term for a long, vigorous walk is hiking, while the word walking covers shorter walks, especially in an urban setting.

Difference from running

Racewalking

Racewalking, or race walking, is a long-distance discipline within the sport of athletics. Although it is a foot race, it is different from running in that one foot must appear to be in contact with the ground at all times. This is assessed by race judges, making it the most subjective of the disciplines in athletics. Typically held on either roads or on running tracks, common distances vary from 3000 metres (1.8 mi) up to 100 kilometres (62.1 mi).

There are two racewalking distances contested at the Summer Olympics: the 20 kilometres race walk (men and women) and 50 kilometres race walk (men only). Both are held as road events. The biennial IAAF World Championships in Athletics also features the same three events. The IAAF World Race Walking Cup, first held in 1961, is a stand-alone global competition for the discipline and it has 10 kilometres race walks for junior athletes, in addition to the Olympic-standard events. The IAAF World Indoor Championships featured 5000 m and 3000 m race walk variations, but these were discontinued after 1993. Top level athletics championships and games typically feature 20 km racewalking events.

Glossary of cricket terms

This is a general glossary of the terminology used in the sport of cricket. Where words in a sentence are also defined elsewhere in this article, they appear in italics. Certain aspects of cricket terminology are explained in more detail in cricket statistics and the naming of fielding positions is explained at fielding (cricket).

Cricket is known for its rich terminology. Some terms are often thought to be arcane and humorous by those not familiar with the game.

A

B

C

Chopped On Inside Edge onto the stumps

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Notes

References

Printed sources: