News tagged with tetrapod
Lungfish provides insight to life on land
A study into the muscle development of several different fish has given insights into the genetic leap that set the scene for the evolution of hind legs in terrestrial animals. This innovation gave rise to the tetrapods—four-legged ...
Oct 04, 2011 |
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Fish out of water: Gene clue to evolutionary step
Two genes controlling a tissue protein may have played a role in the key period when fish shed their fins and became limbed land-lovers, a study published by Nature on Thursday said.
Jun 24, 2010 |
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Fossil footprints give land vertebrates a much longer history
The discovery of fossil footprints from early backboned land animals in Poland leads to the sensational conclusion that our ancestors left the water at least 18 million years earlier than previously thought. ...
Other Sciences / Archaeology & Fossils
Jan 06, 2010 |
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Fossils suggest earlier land-water transition of tetrapod
New evidence gleaned from CT scans of fossils locked inside rocks may flip the order in which two kinds of four-limbed animals with backbones were known to have moved from fish to landlubber.
Other Sciences / Archaeology & Fossils
Apr 17, 2009 |
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Search results for tetrapod
Scared of a younger rival? Not for some male songbirds
When mature male white-crowned sparrows duel to win a mate or a nesting territory, a young bird just doesn't get much respect.
Feb 08, 2012 |
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Self-assembling nanorods: Researchers obtain 1-, 2- and 3-D nanorod arrays and networks
(PhysOrg.com) -- A relatively fast, easy and inexpensive technique for inducing nanorods - rod-shaped semiconductor nanocrystals - to self-assemble into one-, two- and even three-dimensional macroscopic structures ...
Nanotechnology / Nanomaterials
Feb 01, 2012 |
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A new theory emerges for where some fish became four-limbed creatures
A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image ...
Other Sciences / Archaeology & Fossils
Dec 27, 2011 |
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A small step for lungfish, a big step for the evolution of walking
The eel-like body and scrawny "limbs" of the African lungfish would appear to make it an unlikely innovator for locomotion. But its improbable walking behavior, newly described by University of Chicago scientists, ...
Dec 12, 2011 |
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World's smallest frogs discovered in New Guinea
Field work by researcher Fred Kraus from Bishop Museum, Honolulu has found the world's smallest frogs in southeastern New Guinea. This also makes them the world's smallest tetrapods (non-fish vertebrates). ...
Dec 12, 2011 |
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Before animals first walked on land, fish carried gene program for limbs
Genetic instructions for developing limbs and digits were present in primitive fish millions of years before their descendants first crawled on to land, researchers have discovered.
Jul 11, 2011 |
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Vertebrate jaw design locked 400 million years ago
More than 99 per cent of modern vertebrates (animals with a backbone, including humans) have jaws, yet 420 million years ago, jawless, toothless armour-plated fishes dominated the seas, lakes, and rivers. ...
Jul 06, 2011 |
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Breaking Kasha's rule: Scientists find unique luminescence in tetrapod nanocrystals
Observation of a scientific rule being broken can sometimes lead to new knowledge and important applications. Such would seem to be the case when scientists with the U.S. Department of Energy (DOE)'s Lawrence ...
Jul 01, 2011 |
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Pterosaur-inspired aircraft makes sharper turns
(PhysOrg.com) -- By morphing and repositioning a small aircraft's vertical tail to resemble the cranial crest of a pterosaur, researchers have shown that the aircraft's turn radius can be reduced by 14%. The ...
Jun 14, 2011 |
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Were our tetrapod ancestors deaf?
A research group led by Jakob Christensen-Dalsgaard, University of Southern Denmark, have shown that the closest living relatives of the tetrapods, the lungfish, are insensitive to sound pressure, but sensitive ...
Nov 08, 2010 |
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List of search results for tetrapod
