Sharks’ ability to switch between different senses makes them expert hunters

Sharks’ ability to switch between different senses makes them expert hunters

The sharks' ability to switch between its different senses makes them what they are best known as - awesome hunters, according to a fresh study.

A team of researchers from Mote Marine Laboratory, the University of South Florida and Boston University looked at how sharks make use of their sense of vision, touch and smell to guide their behaviors.

The researchers studied three different types of sharks, viz. blacktip, bonnethead and nurse sharks. To observe the predators' normal hunting process, they placed the creatures in a specially designed tank. They blocked the sharks' senses one by one to study their roles in the creatures' hunting process.

They blocked sense of smell with nose plugs, vision with eye coverings, and used antibiotics to block their sense of touch and electrically insulating materials to block their electrosensory capabilities.

Different sharks reacted in different ways to their loss of different senses. With their noses blocked, blacktops and bonnetheads were able to find prey but nurse sharks failed to find its prey. When only vision was blocked, the sharks were still able to strike at the right time, thanks o their ability to detect water movements.

But, when the researchers blocked their electroreception, they could not capture prey.

Dr. Bob Hueter, co-author of the study, said, "What we found was amazing; not only in how the various senses mesh together but also how one shark species can vary from another. Not all sharks behave alike."

The threat that sharks pose to human being is immensely exaggerated. As per some recent estimates, sharks kill only five people annually. It means jellyfish, ants and even vending machines are more dangerous as they kill more people.


FrenchTribune Specials

Google commences roll out of Android 6.0 for Android Wear devices

In a Thursday post on the Google+ social network, Googler Wayne Piekarski has revealed that Google has commenced the roll out of Android 6.0 'Marshmallow' version for Android Wear devices.

According to the announcement made by Piekarski in the Google+ post, Google began the OTAs of Android 6.0 version for Android Wear devices on Thursday...

Most Popular

Google: ‘Project Loon’ does not pose any risk to humans or environment

Tech giant Google has sent a letter to the US Federal...

Amazon reports lower-than-expected earnings for 2015 Q4

On Thursday, bigwig online retailer Amazon. com reported...

Microsoft reports 57% drop in Lumia sales during 2015 Q4

Software giant Microsoft posted its financial results...

FCC proposes makeover of cable set-top box

On Wednesday, the US Federal Communications Commission (...

Poll

Can Greece Come out of Economic Problems: