Navigation Links
Male seahorses are nature's Mr. Mom, Texas A&M researchers say
Date:5/1/2008

Male pregnancy also results in a reversal in sex-related behaviors, Jones said. Females exhibit a competitive behavior thats normally a male-type attribute, and males end up being choosy, which is normally a more female-type attribute, he said. His lab studies the evolutionary steps leading to that reversal in behavior and the role that hormones play in the change.

Jones lab also studies how the brood pouch first evolved in seahorses and pipefish. A big question in evolutionary biology is how a novel structure gets all of the necessary genes and parts to function, Jones said. So we are trying to understand how the brood pouch and the genes required for male pregnancy arose over evolutionary time.

One of the interesting things about the brood pouch is that it appears to have evolved independently multiple times. There are two major lineages of seahorses and pipefish trunk-brooding and tail-brooding and the brood pouch structure independently evolved in each of these groups, Jones said.

Another area Jones lab is researching is the evolutionary steps that led to the unique overall shape of seahorses. How do you go from just being a regular-old looking fish to being something really unusual like a seahorse? Jones said. There are a lot of evolutionary steps involved in that.

Jones explained that the first step in the evolutionary process was the elongation of the fishs body, which the lab is currently studying. The next step was the addition of other unique structural features that seahorses possess, such as the bending of the fish into its unique shape. The head of a seahorse is unusual because unlike most fish, a seahorses head is at a 90-degree angle to its body, Jones explained. Seahorses also have a prehensile tail, meaning that, unlike most fish, they can use their tail to grasp onto things.

These are all interesting changes, and were interested in studying how these novel traits arose and the evolutionary st
'/>"/>

Contact: Keith Randall
keith-randall@tamu.edu
979-845-4644
Texas A&M University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Entrust Digital Signatures Help Secure More Than 18 Million U.S. ePassports
2. UTMB inventions win University of Texas System commercialization awards
3. Underwater microscope helps prevent shellfish poisoning along Gulf Coast of Texas
4. Researchers confirm dead zone off Texas coast since 1985
5. Texas A&M scientists say early Americans arrived earlier
6. Texas A&M testing oral contraceptives for animals
7. Texas Hospital nations first to use large-scale cocoon strategy against whooping cough
8. Rices West honored as one of Texas best researchers
9. UT Southwestern scientist honored among best in Texas research
10. Gulf of Mexico dead zone to be studied by University of Texas at Austin marine scientists
11. Ceres and Texas A&M to develop and market high-biomass sorghum for biofuels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/29/2014)... the age of dinosaurs, gigantic reptilesdistant relatives of modern ... in water and it was thought they didn,t much ... Tennessee, Knoxville, researcher in the thigh of one of ... Stephanie Drumheller, an earth and planetary sciences lecturer, and ... examined 220-million-year-old bite marks in the thigh bones of ...
(Date:9/29/2014)... considered capable of doing anything on their own. But ... water. In the future, such moving droplets may deliver ... to be self-moving is a feature normally ... be self-moving, report researchers from University of Southern Denmark ... , The researchers have made alcohol droplets move in ...
(Date:9/29/2014)... researchers at the University of Cambridge has shown that ... most of Greenland is more sensitive to climate change ... rising sea levels that threaten coastal communities worldwide. , ... levels of meltwater created and spilled into the ocean ... new model also takes into account the role that ...
Breaking Biology News(10 mins):Tooth serves as evidence of 220 million-year-old attack 2Scientists make droplets move on their own 2Greenland Ice Sheet more vulnerable to climate change than previously thought 2Greenland Ice Sheet more vulnerable to climate change than previously thought 3
... a telescope promise to make it easier for people ... requiring sharper distance vision. Schepens Eye Research Institute scientists ... devices in an article published in the May/June issue ... in print form to subscribers this month. ...
... A new study by researchers from Columbia University,s ... most challenging issues in infant health and preventing mother-to-child ... HIV-infected mothers had been advised that for the best ... by a rapid weaning four to six months after ...
... Pennsylvania State University College of Medicine, Hershey, Pennsylvania have ... immune response modifier with potent antiviral and antitumor activity, ... (OGFr) axis for its action. This discovery, reported ... and Medicine , provides new insights into a widely ...
Cached Biology News:Telescope embedded in glasses lens promises to make driving easier for visually impaired 2Telescope embedded in glasses lens promises to make driving easier for visually impaired 3Early cessation of breastfeeding by HIV+ women in poor countries and child survival 2Early cessation of breastfeeding by HIV+ women in poor countries and child survival 3Imiquimod, an immune response modifier, is dependent on the OGF-OGFr signaling pathway 2
(Date:9/29/2014)... Each year in the US, more ... In the military, burn injury is a ubiquitous ... care. More than 800 service members sustained burn ... slowly, remain inflamed and often become infected, producing ... functionally damaging. While developments in supportive care have ...
(Date:9/29/2014)... Biotech Inc. ("Portage" or "the Company") (OTC: PTGEF, Canadian ... three Promissory Note holders, two of whom are the ... July 2014 for a total of $ 300,000 opted ... 3,500,001 restricted common shares. Notes were repayable within one ... the coupon were convertible into common shares to be ...
(Date:9/29/2014)... Transparency Market Research, in its report titled ... by Application - Cancer, Metabolic, CVS, CNS & others, ... - Global Industry Analysis, Size, Share, Growth, Trends and ... therapeutics market was worth US$14.1 billion in 2011 and ... an 8.7% CAGR. , The two main types of ...
(Date:9/29/2014)... METTLER TOLEDO’s new line of XPE ... precision balances as well as automated dosing ... can carry out their daily weighing tasks worry free, ... deliver consistently reliable and compliant results, thanks to new ... of the biggest challenges in analytical and micro-analytical weighing ...
Breaking Biology Technology:Faster Healing with Fewer Scars 2Portage announces conversion of its debt into equity 2Portage announces conversion of its debt into equity 3Global Peptide Therapeutics Market to be Worth US$25.4 Billion by 2018: Transparency Market Research 2Global Peptide Therapeutics Market to be Worth US$25.4 Billion by 2018: Transparency Market Research 3New Line of XPE Balances from METLER TOLEDO is Designed for High Performance and Ease of Compliance 2
... This release is available in German . ... in electronics. Dr. Willi Auwaerter and Professor Johannes Barth, together ... (TUM), have now presented a novel molecular switch in the ... the switch is the position of a single proton in ...
... COLUMBUS, Ohio, Dec. 12, 2011   Chemical Abstracts ... Chemical Society and the world,s authority for chemical ... InfoChem, GmbH (InfoChem), a  leader ... as datamining in chemical science documents, headquartered in ...
... Zyngenia , Inc ... antibody-based drugs called Zybodies™, announced today that it has promoted ... and appointed Daniel L. Menichella as ... our start in September 2009, Zyngenia has made tremendous progress in ...
Cached Biology Technology:The smallest conceivable switch 2CAS and InfoChem Enter Into Long Term Collaboration in ChemInformatics 2CAS and InfoChem Enter Into Long Term Collaboration in ChemInformatics 3Zyngenia, Inc. Promotes Chief Scientific Officer and Hires Chief Business Officer 2Zyngenia, Inc. Promotes Chief Scientific Officer and Hires Chief Business Officer 3
Human peripheral blood neutrophils, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Granulocytes...
... been developed specifically for the stabilization ... microwell plates/strips. Coating Stabilizer maintains ... antibody or protein antigen portion of ... is filtered at 0.2 microns., ,Contents: ...
Human peripheral blood CD56+ NK cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Monocytes, B Cells, NK Cells and Stem Cells...
... HT96 Isothermal Block is an anodized aluminum, ... plates and to provide efficient thermal transfer ... new design of the HT96 Isothermal Block ... enhanced product design allowing for compatibility with ...
Biology Products: