News tagged with metabolic rate
Study finds that mild winters are detrimental to butterflies
The recent mild winter throughout much of the United States was a cause for celebration for many. However, butterfly aficionados shouldn't be joining in the celebration.
Apr 20, 2012 |
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Athletic frogs have faster-changing genomes
Physically fit frogs have faster-changing genomes, says a new study of poison frogs from Central and South America.
Apr 12, 2012 |
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Energy requirements make Antarctic fur seal pups vulnerable to climate change
A new study suggests that climate change could pose a risk for Antarctic fur seals in their first few months of life.
Mar 21, 2012 |
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Scientists reveal how females store sperm for decades
(PhysOrg.com) -- Scientists have discovered that all sorts of females – from birds to reptiles to insects – have a nifty trick to prolong the lifespan of sperm, letting them store it for weeks, months ...
Jan 26, 2012 |
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Ruthless boas know when to ditch their squeeze
Boa constrictors can sense the heartbeat of their quarry as they suffocate it, thus giving themselves the signal to know when the prey is dead, scientists say.
Jan 18, 2012 |
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Early growth trajectories have long-term effects on fitness, study finds
(PhysOrg.com) -- Food supply and environmental conditions affect the growth rates of organisms, which in turn influence future survival and reproduction. A new study by researchers at the University of California, ...
Oct 28, 2011 |
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Herbivore populations will go down as temperatures go up, study says
As climate change causes temperatures to rise, the number of herbivores will decrease, affecting the human food supply, according to new research from the University of Toronto.
Oct 04, 2011 |
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Holes in fossil bones reveal dinosaur activity
(PhysOrg.com) -- New research from the University of Adelaide has added to the debate about whether dinosaurs were cold-blooded and sluggish or warm-blooded and active.
Other Sciences / Archaeology & Fossils
Jul 08, 2011 |
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Scientists sequence DNA of cancer-resistant rodent
Scientists at the University of Liverpool, in partnership with The Genome Analysis Centre, Norwich, have generated the first whole-genome sequencing data of the naked mole-rat, a rodent that is resistant to cancer and lives ...
Jul 05, 2011 |
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Finding is a feather in the cap for researchers studying birds' big, powerful eyes
Say what you will about bird brains, but our feathered friends sure have us -- and all the other animals on the planet -- beat in the vision department, and that has a bit to do with how their brains develop.
Jun 23, 2011 |
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Life-history traits may affect DNA mutation rates in males more than in females
For the first time, scientists have used large-scale DNA sequencing data to investigate a long-standing evolutionary assumption: DNA mutation rates are influenced by a set of species-specific life-history ...
Jun 13, 2011 |
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Crickets that live fast die young
Male crickets advertise their attractiveness with a loud and clear call to females. Calling effort has been linked to more mating success, but what are the hidden costs of showing off?
May 26, 2011 |
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Greatest warming is in the north, but biggest impact on life is in the tropics
In recent decades documented biological changes in the far Northern Hemisphere have been attributed to global warming, changes from species extinctions to shifting geographic ranges. Such changes were expected because warming ...
Space & Earth / Earth Sciences
Oct 06, 2010 |
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Big brains attributed to mother's care
The evolution of big-brained mammals may be due to maternal investment, rather than metabolism, according to a new study by scientists at UCL (University College London) and the University of Cambridge.
Sep 07, 2010 |
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Ant colonies shed light on metabolism
Ants are usually regarded as the unwanted guests at a picnic. But a recent study of California seed harvester ants (Pogonomyrmex californicus) examining their metabolic rate in relation to colony size may lead to a better ...
Aug 26, 2010 |
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