Bird

Birds (class Aves) are a group of endothermic vertebrates, characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds.

The fossil record indicates that birds are the last surviving dinosaurs, having evolved from feathered ancestors within the theropod group of saurischian dinosaurs. True birds first appeared during the Cretaceous period, around 100 million years ago, and the last common ancestor is estimated to have lived about 95 million years ago. DNA-based evidence finds that birds radiated extensively around the time of the Cretaceous–Paleogene extinction event that killed off the non-avian dinosaurs. Birds in South America survived this event and then migrated to other parts of the world via multiple land bridges while diversifying during periods of global cooling. Primitive bird-like "stem-birds" that lie outside class Aves proper, in the group Avialae, have been found dating back to the mid-Jurassic period. Many of these early stem-birds, such as Archaeopteryx, were not yet capable of fully powered flight, and many retained primitive characteristics like toothy jaws in place of beaks and long bony tails.

Hand

A hand (Latin manus) is a prehensile, multi-fingered organ located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints remarkably similar to human fingerprints) are often described as having "hands" instead of paws on their front limbs. The raccoon is usually described as having "hands" though opposable thumbs are lacking.

Fingers contain some of the densest areas of nerve endings on the body, are the richest source of tactile feedback, and have the greatest positioning capability of the body; thus the sense of touch is intimately associated with hands. Like other paired organs (eyes, feet, legs) each hand is dominantly controlled by the opposing brain hemisphere, so that handedness—the preferred hand choice for single-handed activities such as writing with a pencil, reflects individual brain functioning.

Some evolutionary anatomists use the term hand to refer to the appendage of digits on the forelimb more generally — for example, in the context of whether the three digits of the bird hand involved the same homologous loss of two digits as in the dinosaur hand.

Bird-in-Hand, Pennsylvania

This article is about the place, not the Bird-in-Hand Hotel or the Bird-in-Hand Winery

Bird-in-Hand, Pennsylvania is a census-designated place (CDP) in Lancaster County, Pennsylvania, United States, with parts lying in East Lampeter and Upper Leacock Townships. The community has a large Amish and Mennonite population. As of the 2010 census, its population was 402.

History

The area’s first inhabitants were Native American Shawnee and the Susquehannock.

The earliest settlers of what was to become Bird-in-Hand were Quakers and Swiss Mennonites. James Smith was the first of the Quakers known to have settled in the area, arriving by the year 1715. William and Dorothy McNabb were pioneer landowners and the owners of the original Bird-in-Hand Hotel. The Quakers built a meetinghouse and two-story academy, which stands today, next to the present day Bird-in-Hand fire company.

The community was founded in 1734. The legend of the naming of Bird-in-Hand concerns the time when the Old Philadelphia Pike was surveyed between Lancaster and Philadelphia. According to legend two road surveyors discussed whether they should stay at their present location or go on to the town of Lancaster. One of them supposedly said, "A bird in the hand is worth two in the bush," which means it is preferable to have a small but certain advantage than the mere potential of a greater one; and so they stayed. By 1734, road surveyors were making McNabb’s hotel their headquarters rather than returning to Lancaster every day. The sign in front of the inn is known to have once "portrayed a man with a bird in his hand and a bush nearby, in which two birds were perched," and was known as the Bird-in-Hand Inn. Variations of this sign appear throughout the town today.

Lee Perry

Lee Perry may refer to: