Civil Rights
Movements, leaders, victories and the continuing fight for equality.
Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
Katherine Johnson’s mathematical calculations helped guide some of America’s most important early space missions while she confronted the racial and gender barriers faced by Black women in twentieth-century America.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| Pyxis | |
|---|---|
| Spider tortoise | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Cryptodira |
| Family: | Testudinidae |
| Genus: | Pyxis Bell, 1827[1] |
Pyxis is a genus of tortoise in the family Testudinidae. It contains the following species:
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Pyxis is a genus of tortoise in the family Testudinidae. It contains the following species: Flat-backed spider tortoise (Pyxis planicauda) Spider tortoise (Pyxis arachnoides)
Pyxis is a constellation in the Southern Hemisphere. Pyxis may also refer to: Pyxis (vessel), a piece of ancient Greek pottery Pyxis (turtle), a turtle genus Pyxis, a type of capsular fruit where the upper part falls off Pyxis (idol unit), a Japanese idol duo consisting of Miku Itō and Moe Toyota Pyxis Corporation, a manufacturer of medical technologies and automated dispensing cabinet (ADC) for medications Sony Pyxis, an early GPS navigation device launched in 1991
The painted turtle (Chrysemys picta) is North America's most widespread native turtle, with a rich evolutionary history that stretches back 15 million years. As resilient survivors belonging to the pond turtle family Emydidae, these turtles adapted creatively to the planet's changing climate. During the last Ice Age, they split into distinct groups and evolved into three regionally unique subspecies: the Eastern painted turtle (found along the Atlantic coast), the Midland painted turtle (living around the Great Lakes), and the Western painted turtle (the largest group, spanning the west coast and Canada). Scientists still debate whether a fourth group, the Southern painted turtle, is its own separate species or another subspecies. Because they are highly adaptable and widely distributed across fresh waters from Canada to Mexico, their conservation status is listed as Least Concern, meaning they are currently thriving in the wild. It lives in relatively slow-moving fresh waters, from southern Canada to northern Mexico, and from the Atlantic to the Pacific. They have been shown to prefer large wetlands with long periods of inundation and emergent vegetation. The adult painted turtle is 13–25 cm (5.1–9.8 in) long; the male is smaller than the female. The turtle's top shell is dark and smooth, without a ridge. Its skin is olive to black with red, orange, or yellow stripes on its extremities. The subspecies can be distinguished by their shells: the eastern has straight-aligned top shell segments; the midland has a large gray mark on the bottom shell; the western has a red pattern on the bottom shell. The turtle eats aquatic vegetation, algae, and small water creatures including insects, crustaceans, and fish. Painted turtles primarily feed while in water and are able to locate and subdue prey even in heavily clouded conditions. Although they are frequently consumed as eggs or hatchlings by rodents, canines, and snakes, the adult turtles' hard shells protect them from most predators. However, they are still preyed on by animals such as foxes, raccoons, coyotes, and otters. Reliant on warmth from its surroundings, the painted turtle is active only during the day when it basks for hours on logs or rocks. During winter, the turtle brumates, usually in the mud at the bottom of water bodies. This species is one of the few that is specially adapted to tolerate freezing temperatures for extended periods of time due to an antifreeze-like substance in their blood that keeps their cells from freezing. The turtles mate in spring and autumn. Females dig nests on land and lay eggs between late spring and mid-summer. Hatched turtles grow until sexual maturity: 2–9 years for males, 6–16 for females. In the traditional tales of Algonquian tribes, the colorful turtle played the part of a trickster. In modern times, four U.S. states (Colorado, Illinois, Michigan, and Vermont) have named the painted turtle their official reptile. While habitat loss and road killings have reduced the turtle's population, its ability to live in human-disturbed settings has helped it remain the most abundant turtle in North America. Adults in the wild can live for more than 55 years.
The green sea turtle (Chelonia mydas), also known as the green turtle, black sea turtle, and Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans, but it is also found in the Indian Ocean. The common name refers to the usually green fat found beneath its carapace, due to its diet strictly being seagrass, not to the color of its carapace, which is olive to black. The dorsoventrally flattened body of C. mydas is covered by a large, teardrop-shaped carapace; it has a pair of large, paddle-like flippers. It is usually lightly colored, although in the eastern Pacific populations, parts of the carapace can be almost black. Unlike other members of its family, such as the hawksbill sea turtle, C. mydas is mostly herbivorous. The adults usually inhabit shallow lagoons, feeding mostly on various species of seagrasses. The green sea turtle is the only aquatic turtle species which is herbivorous when fully grown. Like other sea turtles, green sea turtles migrate long distances between feeding grounds and hatching beaches. Many islands worldwide are known as Turtle Island due to green sea turtles nesting on their beaches. Females crawl out on beaches, dig nests, and lay eggs during the night. Later, hatchlings emerge, and scramble into the water. Those that reach maturity may live to 90 years in the wild. C. mydas was listed as endangered by the IUCN and CITES until 2025 and is protected from exploitation in most countries. It is illegal to collect, harm, or kill them. In addition, many countries have laws and ordinances to protect nesting areas. However, turtles are still in danger due to human activity. In some countries, turtles and their eggs are still hunted for food. Pollution indirectly harms turtles at both population and individual scales. Many turtles die after being caught in fishing nets. In addition, real estate development often causes habitat loss by eliminating nesting beaches.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Madam C.J. Walker