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Bird
Bird: also known as Aves or avian dinosaurs, 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.
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OCT 15, 2014Plants & Animals
They don't care what you call them and aren't fussy about what they eat. There are hundreds of millions of them and they ...Written By: Peter MicheliOCT 02, 2014Earth & The Environment
Did you know that the word "galaxy" comes from the Greek work for milk because the night sky was so awash with stars tha ...Written By: Peter MicheliJUL 07, 2014Genetics & Genomics
It's thought that in the 1800's the passenger pigeon (Ectopistes migratorius) was the most numerous bird in the world, w ...Written By: Peter MicheliJUN 25, 2014Earth & The Environment
CO2, which is generally accepted as being the leading cause of climate change, has been increasing in the atmosphere for ...Written By: Peter MicheliFEB 20, 2014Plants & Animals
We've all seen strange intersections of animals and music on the Internet, with everything from keyboard-playing cats to ...FEB 05, 2014Plants & Animals
Snowy owls are some of the most beautiful and regal creatures to be found in northern climates. With a typical wingspan ...JAN 21, 2014Chemistry & Physics
There are few things more graceful and impressive than watching a flock of geese in flight, with their classic "V" patte ...DEC 11, 2013Plants & Animals
The American alligator, for all its menacing reputation, is often considered to be one of the more pokey of the reptile ...DEC 10, 2013Videos
Scientists believe that the H7N9 avian influenza virus is evolving to adapt better to human cells. A study of samples ta ...Written By: Jennifer Ellis
OCT 15, 2014
Plants & Animals
They don't care what you call them and aren't fussy about what they eat. There are hundreds of millions of them and they
...
Written By:
Peter Micheli
OCT 02, 2014
Earth & The Environment
Did you know that the word "galaxy" comes from the Greek work for milk because the night sky was so awash with stars tha
...
Written By:
Peter Micheli
JUL 07, 2014
Genetics & Genomics
It's thought that in the 1800's the passenger pigeon (Ectopistes migratorius) was the most numerous bird in the world, w
...
Written By:
Peter Micheli
JUN 25, 2014
Earth & The Environment
CO2, which is generally accepted as being the leading cause of climate change, has been increasing in the atmosphere for
...
Written By:
Peter Micheli
FEB 20, 2014
Plants & Animals
We've all seen strange intersections of animals and music on the Internet, with everything from keyboard-playing cats to
...
FEB 05, 2014
Plants & Animals
Snowy owls are some of the most beautiful and regal creatures to be found in northern climates. With a typical wingspan
...
JAN 21, 2014
Chemistry & Physics
There are few things more graceful and impressive than watching a flock of geese in flight, with their classic "V" patte
...
DEC 11, 2013
Plants & Animals
The American alligator, for all its menacing reputation, is often considered to be one of the more pokey of the reptile
...
DEC 10, 2013
Videos
Scientists believe that the H7N9 avian influenza virus is evolving to adapt better to human cells. A study of samples ta
...
Written By:
Jennifer Ellis