- published: 18 Feb 2016
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Birds (class Aves) are feathered, winged, bipedal, endothermic (warm-blooded), egg-laying, vertebrate animals. With around 10,000 living species, they are the most speciose class of tetrapod vertebrates. All present species belong to the subclass Neornithes, and inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from the 5 cm (2 in) Bee Hummingbird to the 2.75 m (9 ft) Ostrich. The fossil record indicates that birds emerged within theropod dinosaurs during the Jurassic period, around 160 million years (Ma) ago. Paleontologists regard birds as the only clade of dinosaurs to have survived the Cretaceous–Paleogene extinction event 65.5 Ma ago.
Modern birds are 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. All living species of birds have wings—the now extinct flightless moa of New Zealand were the only exception. Wings are evolved forelimbs, and most bird species can fly. Flightless birds include ratites, penguins, and a number of diverse endemic island species. Birds also have unique digestive and respiratory systems that are highly adapted for flight. Some birds, especially corvids and parrots, are among the most intelligent animal species; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.
Flying may refer to:
Into the Woods is a musical with music and lyrics by Stephen Sondheim and book by James Lapine. It debuted in San Diego at the Old Globe Theatre in 1986, and premiered on Broadway in 1987. Bernadette Peters' performance as the Witch and Joanna Gleason's portrayal of the Baker's Wife brought acclaim to the production during its original Broadway run. Into the Woods won several Tony Awards, including Best Score, Best Book, and Best Actress in a Musical (Joanna Gleason), in a year dominated by The Phantom of the Opera. The musical has been produced many times, with a 1988 national tour, a 1990 West End production, a 1991 television production, a 1997 tenth anniversary concert, a 2002 Broadway revival and a 2010 London revival. The musical intertwines the plots of several Brothers Grimm fairy tales and follows them further to explore the consequences of the characters' wishes and quests. The main characters are taken from the stories of Little Red Riding Hood, Jack and the Beanstalk, Rapunzel, and Cinderella, tied together by a more original story involving a baker and his wife and their quest to begin a family, most likely taken from the original story of Rapunzel by the Brothers Grimm. It also includes references to several other well-known tales.
A truth
too fragile
Movement
still
slow
Asleep and frail
Stiffness breeding faster
Reality
exhale
Faith descending
Running
to its end
Watching this world