Navigation Links
Researchers: No faking it, crocodile tears are real
Date:10/3/2007

GAINESVILLE, Fla. When someone feigns sadness they cry crocodile tears, a phrase that comes from an old myth that the animals cry while eating.

Now, a University of Florida researcher has concluded that crocodiles really do bawl while banqueting but for physiological reasons rather than rascally reptilian remorse.

UF zoologist Kent Vliet observed and videotaped four captive caimans and three alligators, both close relatives of the crocodile, while eating on a spit of dry land at Floridas St. Augustine Alligator Farm Zoological Park.

He found that five of the seven animals teared up as they tore into their food, with some of their eyes even frothing and bubbling.

There are a lot of references in general literature to crocodiles feeding and crying, but its almost entirely anecdotal, Vliet said. And from the biological perspective there is quite a bit of confusion on the subject in the scientific literature, so we decided to take a closer look.

A paper about the research appears in the latest edition of the journal BioScience.

Vliet said he began the project after a call from D. Malcolm Shaner, a consultant in neurology at Kaiser Permanente, West Los Angeles, and an associate clinical professor of neurology at the University of California, Los Angeles.

Shaner, who co-authored the paper, was investigating a relatively rare syndrome associated with human facial palsy that causes sufferers to cry while eating. For a presentation he planned to give at a conference of clinical neurologists, he wanted to know if physicians general term for the syndrome, crocodile tears, had any basis in biological fact.

Shaner and Vliet uncovered numerous references to crocodile tears in books published from hundreds of years ago to the present.

The term may have gained wide popularity as a result of a passage in one book, The Voyage and Travel of Sir John Mandeville, first published in 1400 and read wide
'/>"/>

Contact: Kent Vliet
kent.vliet@zoo.ufl.edu
352-392-1565
University of Florida
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers: Treated wood poses long-term threat
2. Fossil find: Godzilla crocodile had head of a dinosaur, fins like a fish
3. Tears reveal some of their deepest secrets to researchers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research ... announced the addition of the "Global Chemical ... http://photos.prnewswire.com/prnh/20130307/600769 ... is the increasing demand for medical sensors in ... patient data for quick and correct diagnosis during ...
(Date:12/11/2014)... 10, 2014  That blood pressure plays a role in ... – the medical term for high blood pressure – was ... the inflatable cuff that,s used in measuring blood pressure was ... nothing new about hypertension, its triggers and its effects. In ... condition and the best ways to treat it. ...
(Date:12/10/2014)... DIEGO , Dec. 9, 2014 CIE ... collaboration catalyst that provides the connective tissue that enhances ... enabling them to easily share client-level information; earned a ... to expand to organizations serving seniors aging in community ... Diego" partner on December 11 th 4-6p. ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... the blood cancer multiple myeloma has revealed that the genetic ... thought. Through results published in Cancer Cell today, ... patient,s tumor can harbor populations of cancer cells equipped with ... in the future. "What this new work shows us ...
... found a way to project future habitat locations ... threatened biodiversity. Associate Professor Grant Wardell-Johnson and ... for Biodiversity and Climate, along with lead researcher ... at Wageningen University in the Netherlands, developed an ...
... sensations, advanced ship design and more, four scientists sponsored ... 23 learned they will receive the nation,s highest honor ... been selected for Presidential Early Career Awards for Scientists ... ceremony at the White House early this year. ...
Cached Biology News:Multiple myeloma study uncovers genetic diversity within tumors 2Multiple myeloma study uncovers genetic diversity within tumors 3Safe havens revealed for biodiversity in a changed climate 2White House lauds ONR-funded researchers for early success 2
(Date:12/19/2014)... Reports from CDC show approximately 117 ... or more chronic health conditions - including cardiovascular disease, ... of these diseases, but may not eliminate the severe ... implanted nerve stimulation devices today offer relief, they require ... induce side effects. , To eliminate the need ...
(Date:12/19/2014)... 2014 In contrast to traditional LED ... various colors, Valoya uses proprietary LED technology to incorporate ... possible uniformity which is critical in low proximity installations. ... accuracy throughout its lifetime which is up to four ... , "The investment cost was clearly higher when compared ...
(Date:12/19/2014)... 18, 2014 With only 2 weeks ... special on Sartorius Biohit products . The product specials ... Picus Electronic Pipette Trade-in Program, and free pipette tips. ... officers around the world. They are ideal for lab ... include:, ,     Full volume range of 0.1 ...
(Date:12/19/2014)... -- Egenix, Inc. is pleased to announce that Lionel ... to succeed Donald Fresne ; Mr. Fresne has also ... member of the Board.  In recognition of the many contributions ... almost twenty years, the Board designated Mr. Fresne as Chairman ... a Search Committee to find a suitable replacement with Biotech ...
Breaking Biology Technology:Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2
... 6 Sigma-Aldrich Corporation,(Nasdaq: SIAL ) will be ... Tuesday, May 13th at 10:40 AM Pacific Time in ... broadcast over the,Internet available at http://ir.sigmaaldrich.com . Users ... the webcast on, http://ir.sigmaaldrich.com users will need to ...
... 2.0 expert, to deliver keynote address at launch ... ... 6 Simon Revell, Manager of Enterprise,2.0 Technology Development at ... software can be leveraged to stimulate the advancement of science,and ...
... m2 (8600 Square-Foot) Facility Enabling Further ... Growth and Recruiting of New Staff, ... new 800 m2,(8600 square-foot) facility enabling further growth and recruiting ... the number of employees,by recruiting additional Protein Tomography(TM) analysts, sales,representatives ...
Cached Biology Technology:Hershey Center for Applied Research Supports Acceleration of Scientific Research and Development 2Hershey Center for Applied Research Supports Acceleration of Scientific Research and Development 3Sidec AB Expands Into New Offices 2