Navigation Links
Saltwater crocodiles can find their way home

Three crocodiles relocated from their homes in Far North Queensland have been tracked swimming between 10 and 30 kilometres per day according to a collaborative research project by The University of Queensland, Australia Zoo and Queensland Parks and Wildlife Service.

Professor Craig Franklin, from the University's School of Integrative Biology, said one relocated crocodile swam around the northern tip of Australia to reach home covering more than 400 kilometres in 20 days.

We often thought crocodiles tired very quickly but here we show very clearly that they are capable of moving long distances for days on end," Franklin said.

The results come from the first satellite tracking study of wild crocodiles undertaken by the collaboration and led by Dr Mark Read (QPWS), Professor Franklin and Steve Irwin and funded in part by a generous bequest from the late Charles Tanner, a herpetologist who lived most of his life in Cooktown, and a grant from the Australian Research Council.

The crocodiles were tracked using a specially-designed transmitter attached to the back of their heads that collected the data and relayed it via satellite back to the scientists.

The results highlighted the success of satellite tracking for crocodiles allowing continuous tracking without human interference.

Professor Franklin said Satellite technology is a great way of tracking these really cryptic animals which are difficult to follow.

"The success of the study was also recognition of the skills and knowledge that Steve Irwin brought to the project."

He said Steve Irwin was a major driving force behind the study, and his intellectual and logistical support complimented the knowledge, experience and contributions made by the other team members.

"He also gave us the assistance of the croc team from Australia Zoo, who are highly skilled in the capture and care of crocodiles."

All three monitored crocodiles were moved by helicopter between 52 and 130 kilometres away but still found their way back to their capture sites. One crocodile was flown across Cape York Peninsula from the west to east coast, and then circumnavigated the peninsula to return home.

He said crocodiles probably used many factors such as its position to the sun, magnetic fields, sight, and smell to navigate.

Crocodiles are more closely related to birds than they are any other reptile so they are possibly using navigation systems similar to birds"

He said the data showed that estuarine crocodiles were oceanic animals which could move phenomenal distances over a prolonged period of time.

He said further satellite and acoustic tracking studies would reveal even more impressive results about crocodile behaviour in coming months and years.


Contact: Craig Franklin
Public Library of Science

Related biology news :

1. Priming embryonic stem cells to fulfill their promise
2. Protein offers way to stop microscopic parasites in their tracks
3. Flocking together: Study shows how animal groups find their way
4. Scientists Propose Sweeping Changes to Naming of Bird Neurosystems to Acknowledge Their True Brainpower
5. Newly Discovered Branding Process Helps Immune System Cells Pick Their Fights
6. Where bacteria get their genes
7. Affymetrix and bioMerieux Extend Their Agreement on GeneChip(R) Technology to Breast Cancer Diagnostics
8. Chickadees can help humans get their bearings
9. Where Bacteria Get Their Genes
10. Bacteria use hosts immune response to their competitive advantage
11. Structures of marine toxins provide insight into their effectiveness as cancer drugs
Post Your Comments:
(Date:6/2/2016)... Perimeter Surveillance & Detection Systems, Biometrics & ... & Other Service  The latest report from ... of the global Border Security market . Visiongain ... billion in 2016. Now: In November 2015 ... and hardware technologies for advanced video surveillance. ...
(Date:5/20/2016)... MINNEAPOLIS , May 20, 2016  VoiceIt ... technology partnership with VoicePass. By working ... user experience.  Because VoiceIt and VoicePass take slightly ... two engines increases both security and usability. ... expressed excitement about this new partnership. ...
(Date:5/9/2016)... Elevay is currently known as ... for high net worth professionals seeking travel for work ... world, there is still no substitute for a face-to-face ... your deal with a firm handshake. This is why ... of citizenship via investment programs like those offered by ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 2016   Boston Biomedical , an industry ... to target cancer stemness pathways, announced that its ... Drug Designation from the U.S. Food and Drug ... including gastroesophageal junction (GEJ) cancer. Napabucasin is an ... cancer stemness pathways by targeting STAT3, and is ...
(Date:6/23/2016)... , June 23, 2016 Houston Methodist ... the Cy-Fair Sports Association to serve as their ... agreement, Houston Methodist Willowbrook will provide sponsorship support, ... connectivity with association coaches, volunteers, athletes and families. ... the Cy-Fair Sports Association and to bring Houston ...
(Date:6/23/2016)... 2016  The Biodesign Challenge (BDC), a university competition ... harness living systems and biotechnology, announced its winning teams ... New York City . The ... projects at MoMA,s Celeste Bartos Theater during the daylong ... senior curator of architecture and design, and Suzanne ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking software ... State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. , ... Tremblay, President and COO of STACS DNA. “In further expanding our capacity as a ...
Breaking Biology Technology: