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News tagged with mutualism

When dark energy turned on (Update)

(PhysOrg.com) -- Some six billion light years distant, almost halfway from now back to the big bang, the universe was undergoing an elemental change. Held back until then by the mutual gravitational attraction ...

Space & Earth / Astronomy

created Mar 30, 2012 | popularity 4 / 5 (19) | comments 68 | with audio podcast

Physics Model Determines Dynamics of Friends and Enemies

(PhysOrg.com) -- Sometimes friends can become enemies and enemies become friends, and it’s difficult to understand exactly how or why the changes took place. A new study shows that when the shifting of alliances ...

Physics / General Physics

created Dec 02, 2009 | popularity 4.5 / 5 (16) | comments 6 feature

Trees retaliate when their fig wasps don't service them

Figs and fig wasps have evolved to help each other out: Fig wasps lay their eggs inside the fruit where the wasp larvae can safely develop, and in return, the wasps pollinate the figs.

Biology / Plants & Animals

created Jan 27, 2010 | popularity 5 / 5 (11) | comments 6 | with audio podcast

Searching for dark energy with the whole world's supernova dataset

The international Supernova Cosmology Project (SCP), based at the U.S. Department of Energy's Lawrence Berkeley National Laboratory, has announced the Union2 compilation of hundreds of Type Ia supernovae, ...

Space & Earth / Astronomy

created Apr 21, 2010 | popularity 4.5 / 5 (12) | comments 16 | with audio podcast

Acacias use ants to guard flowers

(PhysOrg.com) -- Research by Dr Nigel Raine, Senior Lecturer in Animal Behaviour at Royal Holloway, University of London has revealed how a special plant-ant relationship thrives on give and take for mutual ...

Biology / Plants & Animals

created Jan 04, 2010 | popularity 5 / 5 (10) | comments 0 | with audio podcast

Probing Question: What predicts a happy marriage?

You’ve planned the perfect Valentine’s Day, booked the candlelit restaurant, bought chocolate and flowers. (Or, depending on your darling's taste, bought tickets to a monster truck rally.) The night couldn’t have gone better… ...

Other Sciences / Other

created Feb 19, 2009 | popularity 4.6 / 5 (9) | comments 0

Half of your friends lost in seven years

Had a good chat with someone recently? Has a good friend just helped you to do up your home? Then you will be lucky if that person still does that in seven years time. Sociologist Gerald Mollenhorst investigated how the context ...

Other Sciences / Social Sciences

created May 28, 2009 | popularity 3.7 / 5 (10) | comments 7

Facebook (and Systems Biologists) Take Note: Network Analysis Reveals True Connections

(PhysOrg.com) -- Facebook figures out that you know Holly, although you haven't seen her in 10 years, because you have four mutual friends -- a good predictor of direct friendship. But sometimes Facebook gets ...

Technology / Computer Sciences

created Dec 07, 2009 | popularity 4 / 5 (9) | comments 8

New Study Eyes Evolution of Fairness and Punishment

(PhysOrg.com) -- Researchers have long been puzzled by large societies in which strangers routinely engage in voluntary acts of kindness, respect and mutual benefit even though there is often an individual cost involved.

Other Sciences / Social Sciences

created Mar 18, 2010 | popularity 4.9 / 5 (7) | comments 2 | with audio podcast

The Joy of sets: For ants and trees, multiple partners are a boon

In the complex world of ant-plant partnerships, serial monogamy can help trees maximize their evolutionary fitness, a new University of Florida study shows.

Biology / Plants & Animals

created Sep 21, 2010 | popularity 5 / 5 (5) | comments 0 | with audio podcast

An equation for friendship

If only they had been there in 1939: Plugging in numbers representing the friendliness between pairs of nations at the outset of World War II, researchers at Cornell University used a computer program to successfully predict ...

Other Sciences / Mathematics

created Jan 17, 2011 | popularity 4 / 5 (6) | comments 2

Biodiversity can promote survival on a warming planet

Whether a species can evolve to survive climate change may depend on the biodiversity of its ecological community, according to a new mathematical model that simulates the effect of climate change on plants ...

Biology / Ecology

created Nov 04, 2011 | popularity 5 / 5 (4) | comments 1 | with audio podcast

When industrious ants go too far

Nature is full of mutually beneficial arrangements between organisms—like the relationship between flowering plants and their bee pollinators. But sometimes these blissful relationships have a dark side, as Harvard biologist ...

Biology / Plants & Animals

created Apr 28, 2009 | popularity 3.5 / 5 (4) | comments 0

Silver lining effect study, 'I have some good news and some bad news'

Communicating "I have some good news and some bad news" is better than combining messages into a single, bleak result when small gains and large losses occur together, according to a study in the current issue of Management Sc ...

Other Sciences / Economics & Business

created Nov 30, 2009 | popularity 5 / 5 (2) | comments 1

Guilt fuels commitment to the job: expert

Feeling a sense of guilt or obligation towards an employer can increase an employee's commitment to an organisation, a University of Queensland Business School researcher has found in a study of Chinese workers.

Other Sciences / Social Sciences

created Jul 27, 2010 | popularity 4.5 / 5 (2) | comments 0

Mutualism

Mutualism may refer to:

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