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All About Birds: Eagle (The Cornell Lab of Ornithology)
Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
bird : any of a class (Aves) of warm-blooded vertebrates distinguished by having the body more or less completely covered with feathers and the forelimbs modified as wings — Webster
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight 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 world’s most numerically-successful class of tetrapods, with approximately ten thousand living species, more than half of these being passerines, sometimes known as perching birds. Birds have wings which are more or less developed depending on the species; the only known groups without wings are the extinct moa and elephant birds. Wings, which evolved from forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in flightless birds, including ratites, penguins, and diverse endemic island species of birds. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. — Wikipedia
Ornithology is a branch of zoology that concerns the study of birds. Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. Most marked among these is the extent of studies undertaken by amateurs working within the parameters of strict scientific methodology.
The science of ornithology has a long history and studies on birds have helped develop several key concepts in evolution, behavior and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. — Wikipedia
Birds News -- ScienceDaily Bird news and research. From chickens to birds of prey, wing design to migration, read all the latest news on birds.
Embryology: A sequence of reflexive contractions...
on August 20, 2019 at 2:16 pm
It normally takes about 21 days for chicken embryos to develop into chicks. By observing chicken hindlimb formation, a research team has just discovered that the mechanism at the origin of embryonic development consists of a sequence of reflexive contractions. The researchers were able to artificially recreate the same process and accelerate it by as much as a factor of 20.
Extinct Caribbean bird yields DNA after 2,500...
on August 15, 2019 at 6:32 pm
Scientists have recovered the first genetic data from an extinct bird in the Caribbean, thanks to the remarkably preserved bones of a Creighton's caracara from a flooded sinkhole on Great Abaco Island.
Monkey malaria breakthrough offers possible cure...
on August 15, 2019 at 2:15 pm
A breakthrough in monkey malaria research could help scientists diagnose and treat a relapsing form of human malaria.
Monster penguin find in Waipara, New Zealand
on August 14, 2019 at 2:16 pm
A new species of giant penguin -- about 1.6 metres tall -- has been identified from fossils found in Waipara, North Canterbury in New Zealand.
What a group of bizarre-looking bats can tell us...
on August 14, 2019 at 1:44 pm
Bats with skulls and teeth adapted to a wide range of diets are helping scientists understand how major groups of mammals first evolved.
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Residents return home as Canary Islands blaze...
on August 21, 2019 at 7:15 am
Residents forced from their homes when a devastating wildfire erupted on the Spanish holiday island of Gran Canaria began returning Tuesday, although firefighters were still battling to contain the blaze, officials said.
Designing new ways to make use of ocean plastic
on August 20, 2019 at 2:30 pm
Beachcombing has long been a part of life for island communities. On the southwestern edge of Scarp, a small, treeless island off the coast of Harris in Scotland's Outer Hebrides, the Mol Mòr ("big beach") was where locals went to collect driftwood for repairing buildings and making furniture and coffins. Today there is still much driftwood, but as much or more plastic.
Connected forest networks on oil palm plantations...
on August 20, 2019 at 2:08 pm
Connected areas of high-quality forest running through oil palm plantations could help support increased levels of biodiversity, new research suggests.
Canary Islands fire that threatened protected...
on August 20, 2019 at 11:27 am
A wildfire that has raged across vast areas of the Spanish holiday island of Gran Canaria since the weekend has abated as winds have dropped, limiting damage to protected areas, local officials said Tuesday.
Scientists discover new way to reconstruct what...
on August 20, 2019 at 11:05 am
Scientists could be set to reveal the most accurate depictions of ancient vertebrates ever made after a world-first discovery at University College Cork (UCC) in Ireland.