Navigation Links
Animals with bigger brains, broader diets have better self control
Date:4/24/2014

cylinder for a see-through one. To fish out the food, the animals had to resist the natural impulse to reach directly in front of them for the treat -- which would only cause them to bump their paws, beaks or trunks into the plastic -- and instead reach around through a side entrance as they learned before.

In another test, the researchers showed the animals where to find a treat hidden in one of three cups placed upside down on a table, then moved the treat to a different cup while the animals looked on. To get it right, the animals had to suppress the urge to keep looking under the first cup and search under the new cup instead.

Bonobos, gorillas and orangutans performed well on both tests, picking the correct cup or reaching for the right opening more than 90% of the time. But squirrel monkeys and a lesser-known primate called the Coquerel's sifaka did miserably, getting it right less than half the time.

Led by MacLean and Brian Hare and Charlie Nunn of Duke University, the researchers looked at a range of factors that could explain why some species excelled and others floundered.

Overall, the species with the highest scores on the self-control tests had bigger brains. Absolute brain size mattered, but relative brain size did not -- suggesting that species differences in self-control may be due to differences in how the brain is wired, rather than having big brains for their bodies per se.

In addition to brain size, the researchers also looked at whether lifestyle factors might play a role. One of the most widely accepted ideas is that animal intelligence evolved to deal with the demands of living in a group. The bigger the group, the better an animal needs to be at keeping track of social relationships and managing the delicate balance between competing and cooperating.

Surprisingly, group size didn't seem to matter for self-control, but within primates the researchers found support for another idea: Primat
'/>"/>

Contact: Robin Ann Smith
rsmith@nescent.org
919-668-4544
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Sunken logs create new worlds for seafloor animals
2. Ancient shrimp-like animals had modern hearts and blood vessels
3. First animals oxygenated the ocean, study suggests
4. In grasslands remade by humans, animals may protect biodiversity
5. System-wide analyses have underestimated the importance of transcription in animals
6. Theory on origin of animals challenged: Animals needs only extremely little oxygen
7. Caring for animals may correlate with positive traits in young adults
8. Fur and feathers keep animals warm by scattering light
9. New monitoring technique reveals endangered animals
10. Living on islands makes animals tamer
11. Climate changes the distribution of plants and animals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Animals with bigger brains, broader diets have better self control
(Date:8/21/2014)... tube connectors, designed by an international standards process, will ... According to an invited review published in the OnlineFirst ... NCP ), the official journal of the American Society ... will greatly reduce the occurrence of misconnection that can ... connectors, which are used to join medical devices, components, ...
(Date:8/21/2014)... from North Carolina State University have developed a novel ... model has applications for creating new materials as well ... "Our new technique allows us to model much larger ... much more quickly," says Nan Li, lead author of ... in NC State,s Department of Materials Science and Engineering. ...
(Date:8/20/2014)... a study of 158 pregnant teenagers in Rochester, NY, ... intentional consumption of ice, cornstarch, vacuum dust, baby powder ... Cornell study. , Moreover, such teens had significantly lower ... eat nonfood substances. , Pregnant teens, regardless of pica, ... lead to iron deficiency and anemia. Low iron in ...
Breaking Biology News(10 mins):New feeding tube connectors will improve patient safety 2Researchers develop models to study polyelectrolytes, including DNA and RNA 2Pica in pregnant teens linked to low iron 2
... WASHINGTON, D.C. (March 7, 2011) -- All our daily activities, ... on signals carried along the body,s vast network of neurons. ... small molecules within nerve cells -- receptors, ion channels, and ... recently, the study of these molecules in real time has ...
... gene that causes Hajdu-Cheney syndrome, a disorder of the ... The study, published in Nature Genetics today, ... highlights the gene as a potential target for treating ... reported cases of Hajdu-Cheney syndrome (HCS), of which severe ...
... separates from Greenland, is the calving due to typical ... called the Scalable, Efficient, and Accurate Community Ice Sheet ... Ridge National Laboratory, aims to use state-of-the-art simulation to ... climate. ORNL computational Earth scientist Kate Evans leads ...
Cached Biology News:Gene responsible for severe osteoporosis disorder discovered 2
(Date:8/20/2014)... 20, 2014 The 6th Annual ... held on October 29-30 in San Francisco, CA. This ... and government researchers and clinicians focused on addressing and ... , In the twelve years since the sequencing of ... been introduced with pharmacogenetic information in the label and ...
(Date:8/20/2014)... SAN JOSE, Calif. , Aug. 20, 2014 ... UCSD highlights the transformative collaboration between the school,s ... (IoT).  As part of the Intel® Software Academic ... between computer sciences and the human body.  ... The study exhibits the work of ...
(Date:8/20/2014)... Cranford, NJ (PRWEB) August 20, 2014 ... solutions, announced today that it has expanded its myPROpad™ ... of the EQ-5D-5L, one of the most widely ... for measuring general health status. The EQ-5D is used ... to generate a measure that can be used to ...
(Date:8/19/2014)... (PRWEB) August 20, 2014 One ... regenerative medicine is an inadequate vascular supply. Nutrient ... and decellularized tissues is critical for successful regeneration ... attempted to mitigate deficiencies in vascularization and promote ... scaffold bioactivity, optimizing scaffold design and architecture, and ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2EQ-5D™ Assessment Now Available for iPad 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2
... LA JOLLA, Calif., Jan. 13 Burnham ... an assay development and license agreement with ... L.L.C. (J&JPRD). The agreement is Burnham,s ... company.Under this multi-year agreement, Burnham will provide ...
... - GeneNews Limited (TSX: GEN), a company focused ... detection of diseases and personalized health management, today ... 7,473,528 entitled "Method for the detection of Chagas ... protects the Company,s discovery of a blood biomarker-based ...
... Datafarm, Inc. a leading provider of Electronic Document Publishing Solutions and ... announce the appointment of Mr. Daniel F. Orfe to Vice President, ... will oversee Datafarm,s Regulatory Services Group. , ... Marlborough, ...
Cached Biology Technology:Burnham Announces Assay Development and License Agreement with Johnson & Johnson Pharmaceutical Research & Development, L.L.C. 2GeneNews granted U.S. patent for Chagas disease based on Sentinel Principle(TM) platform 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 3Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 4
... Rabbit Reticulocyte Lysate contains the cellular components ... acids, initiation, elongation and termination factors) but ... Untreated Lysate is used primarily for the ... abundant source of endogenous globin mRNA. Untreated ...
... All MagCellect Ferrofluid products perform ... with R&D Systems MagCellect Magnet. ... this neodymium iron boron permanent ... x 75 mm test tubes ...
... The ScriptCap™ 2'-O-Methyltransferase converts Cap 0 (or ... The Cap 1 structure has been shown ... up to 50%. This improvement is seen ... ScriptCap™ m7G Capping System as well as ...
Request Info...
Biology Products: