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Homing sharks - The Hindu

Homing sharks
Updated:
May 08, 2021 20:45 IST
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Do sharks navigate using Earth s magnetic field?
Several birds and animals have been known to use magnetoreception or the special sense to detect Earth’s magnetic field to perceive the location and also track the direction during migration.
A new study published in
(Current Biology) found the first solid evidence that sharks also use Earth’s magnetic fields for their long-distance travel. Sharks undergo precise, long-distance migrations and make round-trips for over 20,000 kilometres.
For the study, the team captured 20 juvenile bonnethead sharks
(Sphyrna tiburo) from the Gulf of Mexico and transported them to the Florida State University lab for experimentation. They exposed the animals to artificial magnetic conditions which represented locations hundreds of kilometres away from their capture location. They found that the sharks orientated themselves according to t ....

Bryan Keller , Florida State University , Current Biology , Magnetic Field , பிரையன் கெல்லரர் , புளோரிடா நிலை பல்கலைக்கழகம் , தற்போதைய உயிரியல் , காந்த புலம் ,

Elon Musk Asked Twitter For SNL Skit Ideas & It Backfired Immediately

Elon Musk is set to host Saturday Night Live on May 8, so he asked Twitter for SNL skit ideas. It backfired faster than a SpaceX rocket. ....

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64-year-old paddleboarder bit by shark at Florida beach

NEW SMYRNA BEACH, Fla. - A 64-year-old woman was bitten by a shark, causing minor injuries. ....

Volusia County Beach Safety Ocean Rescue , வோலுசிய கவுண்டி கடற்கரை பாதுகாப்பு கடல் மீட்பு ,

Sydney councillors vote to remove shark nets after disturbing photos emerge

Sydney councillors vote to remove shark nets after disturbing photos emerge
28 Apr, 2021 01:00 AM
3 minutes to read
Since 2012, NSW s shark meshing programme has captured almost 3000 marine animals, including dolphins, whales and turtles, killing 1600 of them. Photo / Humane Society International (Australia)
Since 2012, NSW s shark meshing programme has captured almost 3000 marine animals, including dolphins, whales and turtles, killing 1600 of them. Photo / Humane Society International (Australia)
news.com.au
By: Erin Lyons
Sydney councillors are calling for shark nets to be banished from a series of popular beaches after shocking images emerged of dead or injured marine life.
Northern Beaches Council has voted to pass a motion urging the state government to abolish the nets at its local beaches. ....

New South Wales , Lawrence Chlebeck , Leonardo Guida , Photo Humane Society International Australia , Australia Department Of Primary Industry Fisheries , Northern Beaches Council , Australian Marine Conservation Society , Department Of Primary Industry , Photo Humane Society International Australia Marine , Beaches Council , Major Candy Bingham , Humane Society International , Primary Industry , புதியது தெற்கு வேல்ஸ் , லியோனார்டோ கைடா , வடக்கு கடற்கரைகள் சபை , ஆஸ்திரேலிய கடல் பாதுகாப்பு சமூகம் , துறை ஆஃப் ப்ரைமரீ தொழில் , கடற்கரைகள் சபை , மனிதாபிமானம் சமூகம் சர்வதேச , ப்ரைமரீ தொழில் ,

Shark kills man off New Caledonia

Shark kills man off New Caledonia
World
April 26, 2021
NOUMEA: A 53-year-man has died of suspected shark bites while paddle boarding near a beach in Noumea, New Caledonia, prosecutors said on Sunday, the latest in a number of attacks since the start of this year.
The man was found lifeless on his board by a boater late Saturday just off the Nouville peninsula, on the main island of the French South Pacific territory.
An autopsy to confirm the cause of death is expected on Monday.“At this stage, investigators do indeed suspect a shark attack,” state prosecutor Yves Dupas said in a statement. ....