Acromyrmex is the more diverse of the two leafcutting ant genera (the other is Atta). These distinctive spiny insects cut fresh vegetation to feed to a specialized fungus that grows only in ant nests. The fungus serves as the ants' food source and in return is cultivated and dispersed by the ants.
Every summer, a pitched battle of wills unfolds within the acorns and hollowed-out twigs of the Northeastern United States. A dark, bulbous-headed ant called Protomognathus americanus invades these tiny abodes and plucks the pearly brood of ants in the genus Temnothorax.
BLOOMINGTON, Ind. -- Biologists at Indiana University have significantly advanced understanding of the genetic pathways that control the appearance of different physical traits in the same species depending on nutritional conditions experienced during development. In many animals, nutrition -- not genetic differences -- controls the appearance of certain physical traits.
While science journalists' attention remains focused on the Nobel prizes, another set of awards- rather diminutive in scope- were also released this morning. Nikon has announced the 2011 winners of its prestigious Small World Photomicrography Competition. The contest, now in its 37th year, received over 2,000 entries.
Hymenoptera is a diverse order of insects that contains wasps, bees, and sawflies. Many species are parasitic on other insects and are important in biological control of pests. Several groups have evolved complex social behavior, particularly in the bees and ants.
With the Port Talbot steelworks up for sale, Tata saying the value of its operations are "almost zero", and a £485m pension deficit, prospects for the plant's thousands of workers look grim. But while this is certainly a local tragedy, some perspective is needed.
With the EU referendum less than 100 days away and the outlook for the global economy looking somewhat gloomier than it was when he delivered his Autumn Statement in November, big changes at George Osborne's eighth Budget were never likely, and sure enough they did not materialise.
Private pensions have always been a soft target for cash-hungry chancellors. Nigel Lawson made pension funds restrict the size of their surpluses under threat of losing their tax-exempt status. Gordon Brown abolished Advance Corporation Tax in the great pension raid of 1997.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
Selecting a term
Start searching tweets, articles from media outlets, articles mentioned in tweets, journalists'
names, titles and bios with some suggested searches:
Companies or Topics (e.g. iPhone, Microsoft)
Phrases (e.g. "cloud computing") — use quotes to keep the terms together
Twitter handles (e.g. @username) — returns those who have mentioned or replied to
Names (e.g. David Pogue)
Hashtags (e.g. #sxsw, #london2012)
Bio details (e.g. vegan, Olympics, father)
Muck Rack's Advanced Search allows for many boolean operators.
Find results that mention multiple specified terms, use AND or
+. For example, ensure each result contains both politicians Barack Obama and Mitt Romney by
searching Obama AND Romney or Obama +Romney.
Use the operators OR or , to broaden your search when you'd like either of
multiple terms to appear in results. (This is the default behavior of our search when no operators
are used.) For example, search for democrat OR republican to find results that refer to
Democrats and/or Republicans.
Use NOT or - to subtract results from your search. For
example, searching Disney will yield results about the Walt Disney Company as well as Walt Disney
World Resort. To exclude mentions of Disney World, search for Disney -World or Disney
When using one of these operators with a phrase, enclose it in quotation marks. For example, you can
find results about smartphones excluding Apple's iPhone 4S by searching smartphone -"iPhone
Use parentheses to separate multiple
boolean phrases. For example, to find journalists talking about having fun in Disney World or
Disneyland, search for ("disney world" OR disneyland) AND fun.