Navigation Links
Contrary to common wisdom, scientist discovers some mammals can smell objects under water

arget's surface and then were sucked back into the nostrils.

"Because the olfactory nerves in the nose are covered with mucous, odorant molecules are all water soluble," Catania said. "So, when these bubbles come into contact with an object, it is almost inevitable that odorant molecules will mix with the air and be drawn into the nose when the bubble is inhaled."

Just because the moles are getting whiffs of interesting odors underwater doesn't necessarily mean they smell them. So Catania devised some additional tests.

One of the complicating factors was the star-nosed mole's unusual nose, which is ringed by a star-shaped set of fleshy appendages. It uses its star like a super-sensitive set of fingers to identify objects it encounters while burrowing and swimming. So, at the same time it is sniffing at an object it is also fingering it with its star.

To determine if the mole can identify edible objects by sniffing alone, Catania created underwater scent trails leading to food and recorded how well the moles' could follow them. To keep the moles from using their tactile star, he put a grid-work between the animals and the scent trails. The openings in the grid were too small for the star appendages to squeeze through but large enough so the air bubbles could pass without difficulty.

These trials demonstrated that the moles could follow the scent trail by sniffing alone (without the tactile star).

Five moles were tested on earthworm scent trails and followed the trail to its reward with accuracies ranging from 75 percent to 100 percent accuracy. Two moles were tested with fish scent trails and followed them with 85 percent and 100 percent accuracy.

When the grid was replaced with a screen with openings too small for the air bubbles to pass through, however, the moles' performance dropped down to the level of chance ?the same as their performance with no-scent trails.

In order to see if this capa
'"/>

Source:Vanderbilt University


Page: 1 2 3

Related biology news :

1. Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine
2. U-M scientists find genes that control growth of common skin cancer
3. Iron exporter revealed that may explain common human disorder
4. Does vitamin C help prevent or treat the common cold? Maybe not, after all.
5. High-powered gene profiles provide clues to genes involved in common form of lung cancer
6. Doctors should stop prescribing antibiotics for the common cold, review advises
7. Most common lung cancers may begin in newly discovered cells
8. Ibruprofen and other commonly used painkillers for treating inflammation may increase the risk of heart attack
9. Toxic flood lifts lid on common urban pollution problem
10. Scientists use gene transfer technology and common virus to block neuropathic pain in animals
11. Retina adapts to seek the unexpected, ignore the commonplace
Post Your Comments:
(Date:2/25/2015)... 25, 2015  ABC Financial Services (ABC), the ... Health and Fitness Industry, today announced enhancements to ... The latest upgrade includes advances to the agreement ... check-in via Identity One fingerprint biometrics. The features ... interactive displays at the International Health, Racquet & ...
(Date:2/24/2015)... This report analyzes the worldwide markets for Iris ... for the US, Canada , ... Asia-Pacific , Middle East , and ... are provided for the period 2013 through 2020. Also, a ... and analytics are derived from primary and secondary research. Company ...
(Date:2/24/2015)... NEW YORK , Feb. 24, 2015 This report ... Thousands by the following Segments: Face Biometrics, and Voice Biometrics. The ... , Japan , Europe ... & Africa , and Latin ... period 2013 through 2020. Also, a seven-year historic analysis is provided ...
Breaking Biology News(10 mins):ABC Financial Unveils New Software Enhancements 2ABC Financial Unveils New Software Enhancements 3World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11World Face and Voice Biometrics Industry 2World Face and Voice Biometrics Industry 3World Face and Voice Biometrics Industry 4World Face and Voice Biometrics Industry 5World Face and Voice Biometrics Industry 6World Face and Voice Biometrics Industry 7World Face and Voice Biometrics Industry 8World Face and Voice Biometrics Industry 9World Face and Voice Biometrics Industry 10World Face and Voice Biometrics Industry 11World Face and Voice Biometrics Industry 12World Face and Voice Biometrics Industry 13World Face and Voice Biometrics Industry 14World Face and Voice Biometrics Industry 15World Face and Voice Biometrics Industry 16
... of getting from one place to another. Although many ... cues; things such as walls and corners to determine ... as rats and human children are so influenced by ... features such as a distinctive object or colored wall. ...
... with tendrils that extend far from the primary ... to an invariably poor prognosis. In a new ... journal PLoS Biology, Angela Johnston, Donna Senger, and ... mice with human gliomas and compared invasive cells ...
... Harvard University and the University of California, San Diego, ... genes determines the patterns of fur coloration that camouflage ... The work, published this week in the journal PLoS ... specific genetic changes have been linked to an organism,s ...
Cached Biology News:New study examines how rearing environment can alter navigation 2Interaction of just 2 genes governs coloration patterns in mice 2
(Date:3/2/2015)... March 02, 2015 Global ... formed alliance with Shenzhen HANK Bioengineering Co., Ltd. ... The alliance will establish a stem cells training ... China in September 2015. , Shenzhen HANK is ... an award-winning scientist, microbiologist and virologist, to integrate ...
(Date:3/2/2015)... Outside GC, the leading provider of on-demand, ... Debbie Casey as a member of the firm, further ... , Debbie has spent over 20 years in ... Care North America in both legal and business capacities. ... with Outside GC’s growing list of healthcare clients, with ...
(Date:3/1/2015)... (PRWEB) March 01, 2015 Market ... agreement for quality market research promotion on Internet. ... research reports worked out by DataGroup Booksellers. , ... Market Publishers Ltd, commented on the recent partnership ... DataGroup Booksellers in our team of publishers. Since ...
(Date:2/28/2015)... AZ (PRWEB) February 28, 2015 Increasing its ... World Films launches its first three episodes of The GMO ... Mile Project this month, as it continues its mission to ... launch, the project's first phase, to “uncover the truth about ... of media. , The GMO Truth Podcast is an expansion ...
Breaking Biology Technology:Global Stem Cells Group Announces Alliance with HANK Bioengineering Co., Ltd. in Shenzhen, China 2Global Stem Cells Group Announces Alliance with HANK Bioengineering Co., Ltd. in Shenzhen, China 3Outside GC Expands Healthcare Team 2Market Publishers Ltd and DataGroup Booksellers Sign Partnership Agreement 2Market Publishers Ltd and DataGroup Booksellers Sign Partnership Agreement 3The Walk a Mile Project Launches “GMO Truth” Podcast 2
... 2011 ,   ... Matthew Roe as Chief Business Officer. Matthew joins,Crescendo ... Development & Licensing. During a 23-year ... management, acquisition, divestment, and sales,and marketing, and saw ...
... below 100 nanometres have numerous applications ranging from ... participates in a intragated FP7 European Project called ... nanoimprinting techniques (NIL), as a core aspect for ... followed are cost reduction, simpler fabrication process and ...
... classes of fundamental particles. Photons, the quanta of light, ... up atomic nuclei belong to the fermions. Bosons and ... level. This difference is expressed in their quantum statistics. ... was postulated, which was dubbed the anyon. In their ...
Cached Biology Technology:Crescendo Biologics Appoints Matthew Roe as Chief Business Officer 2Acrobatics for anyons: New test for elusive fundamental particle proposed 2
... Sampler Kit Kit Includes: Histone ... ul Histone Deacetylase 3 (HDAC3) Antibody, Catalog ... Antibody, Catalog #2072, 40 ul Histone Deacetylase ... Histone Deacetylase 6 (HDAC6) Antibody, Catalog #2162, ...
Immunogen: Synthetic Peptide: C N(185) D G T E F G G S I Y Q K(197) Storage: -20 C, Avoid Freeze/Thaw Cycles...
Use the DUALmembrane kit 3 to carry out DUALmembrane interaction analysis and cDNA library screening to characterize interactions between integral membrane proteins and to identify novel interaction ...
PlusOne EDTA, disodium salt, 100 g. Category: Electrophoresis Systems & Standards & Reagents, Electrophoresis Standards and Reagents, Buffers....
Biology Products: