Guiana dolphins, which swim in the Atlantic Ocean and Caribbean Sea near Central and South America, probably eat bottom-dwelling fish but still surface to splash and play. Credit: Richard Diepstraten
21 comments:
Nick
said...
I wonder if other marine hunters, like Killer Whales and sharks, have adapted the same sense. If so, maybe that's why those animals are the best hunters in the sea.
This article is really fascinating. When I think about dolphins, I think about natural things. When I think about electricity, I think about the direct opposite. It is really amazing to know that these two very different things go together. The part that amazes me the most is that Paco (the dolphin that scientists tested on) knew when they turned on the electric field that they had, but when they covered his snout with plastic he couldn't tell the difference.
I loved this article! I wonder if the dolphins could be used in some way to improve our country, such as the army? Maybe they can be used to guide submarines, and could have a signal if there was an electric current of a human coming from the designated attack area. The sense could also be used for emergency help. If someone was lost at sea, then the dolphins could be used to detect the electric current coming from them, in order to save the person. Also, in the article they said that they tested on Guinea Dolphins, so I wonder if other species of dolphins have that ability? If so, I think that the human race could increase sea travel by great measures with the dolphin's help.
In response to Nick's comment about other animal's senses: I researched how many senses do sharks have and I found it was a very controversial fact! Some people think that sharks have six senses, others think they have up to thirteen senses. I find it very interesting that dolphins when the dolphin's mouth was covered in plastic it could not detect the electricity fields. I guess it is like our eyes. If you had your eyes covered up you can't see. The researchers should try this experiment with another type of dolphin. They might get different results. Perhaps another dolphin doesn't need that sense and has adapted to not use it or not have it any more!
I think it is cool that they can detect electricity through their snouts, although it won't work through plastic. I think it is a good idea what Ava D. said, but what if the enemy let out a false electrical charge and snuck up on them? What if they could genetically breed new species of Guiana Dolphins who could have some slight layer of perception even through the plastic? Maybe other kinds of dolphins have a stronger "Electric Sense" than the Guianas.
I find this article very interesting.I wonder how strong the plastic was? If we covered our nose with certain types of plastic we might still be able to smell. That makes me wonder how strong there sense might be. If it isn't strong plastic, then that just proves how much electricity living creatures can make! And Ava, I think it would be cool if we could use them in the military. We would have to come up with some kind of way for the dolphin to communicate with us by telling us when it sensed something. There might have been more research done about what signs they might give when they sense an electric field. Overall I think it is so cool dolphins can do that! I hope to learn about cool senses other creatures have because I find that fascinating.
The plastic part makes no sense because plenty of phones have a hard plastic covering them but the electrical signatures are still detected so I'm guessing that a soft plastic wouldn't hold. Also the dolphin using the small electricity to hunt would be a bad idea because sound and other waves travel better though gas then though the water or solid sand where the dolphin hunts so why would the dolphin be able to detect the electrical signatures when animal who have a highly developed sense of smell couldn't even do that and marine life isn't to big on the sense of electrical discharges though it does have a history of having a strong feal which it detects thought the waves since it is most noticeable when there are more molecules in the area.
Ava, great idea but wouldn't the dolphin chase the submarine of our army. Even if it was trained to stay away from the electrical signature of that type of the submarine used by the U.S., wouldn't it fail and lead as into danger when the enemy submarine was the same model as ours.
I think this article was very interesting, and adding on to what Ava D. said, dolphins could be used for that. But we would have to be careful because the dolphins could be mislead by some things. Maybe a kind of plastic could be developed that still allows the sense to kick in, but make it detect within a certain range somehow.
I liked this article a lot. I had no idea that dolphins had no sense of smell. I guess you learn something everyday. I think it is amazing that a dolphin could detect electricity through there snouts, but they can not detect it with plastic over there snout.
I thought that this article was really interesting. I had no idea that dolphins had no sense of smell. About Ava D's idea, what if the dolphin sensed a fish and just followed the fish, it could head the ships in the wrong direction and the enemy could come up right behind them. Nick had a good thought. I also wonder other marine predators have the same sense. I wonder if all dolphins have the same sense. I wonder what kind of plastic they used to cover Paco's (the dolphin that they used to experiment) snout. I agree with Emory about how I thought about electricity being completely separate from natural things.
It's truly amazing that dolphins can detect electricity. I also wonder if other species of dolphins or other animals can do this. I wonder if dolphins or other animals can detect electricity through other parts of their bodies.
This does not have much to do with this article, but I just want to say that dolphins never sleep. Just a cool fact I wanted to share... I posted this again because in the other one I said, "either" and that didn't make any sense.
I think it is interesting on how most of the dolphins senses are based on the snout dimples that detect electricity, because when there was a change in the electric field, the dolphin reacted, but when his snout was covered with plastic, he did not react when the electrical field changed.
I think this is really cool. Like Emory said, dolphins and electricity are pretty much the exact opposites of each other, so I find it amazing that dolphins can sense electricity. I wonder if these dolphins have had this sense for a long time or if they got it somewhere during evolution. They could have sensed electricity even before we knew it existed. Also, there are a lot of stories about dolphins saving boats and humans. I was thinking that maybe, if other species of dolphins also have this sense, that's how they find the boats, or people.
I think this article was really interesting. I thought that it was cool because I never knew that someone could train dolphins to swim toward them, (or the fish) when they sensed the electric field. I once heard a true story of a dolphin saving a human who was about to be attacked by a shark, and this explains it.
21 comments:
I wonder if other marine hunters, like Killer Whales and sharks, have adapted the same sense. If so, maybe that's why those animals are the best hunters in the sea.
This article is really fascinating. When I think about dolphins, I think about natural things. When I think about electricity, I think about the direct opposite. It is really amazing to know that these two very different things go together. The part that amazes me the most is that Paco (the dolphin that scientists tested on) knew when they turned on the electric field that they had, but when they covered his snout with plastic he couldn't tell the difference.
Example: In the movie Soul Surfer, the shark, with that sense, thought Betheny was a turtle. That sense only goes with the obvious.
I loved this article! I wonder if the dolphins could be used in some way to improve our country, such as the army? Maybe they can be used to guide submarines, and could have a signal if there was an electric current of a human coming from the designated attack area. The sense could also be used for emergency help. If someone was lost at sea, then the dolphins could be used to detect the electric current coming from them, in order to save the person. Also, in the article they said that they tested on Guinea Dolphins, so I wonder if other species of dolphins have that ability? If so, I think that the human race could increase sea travel by great measures with the dolphin's help.
In response to Nick's comment about other animal's senses: I researched how many senses do sharks have and I found it was a very controversial fact! Some people think that sharks have six senses, others think they have up to thirteen senses.
I find it very interesting that dolphins when the dolphin's mouth was covered in plastic it could not detect the electricity fields. I guess it is like our eyes. If you had your eyes covered up you can't see. The researchers should try this experiment with another type of dolphin. They might get different results. Perhaps another dolphin doesn't need that sense and has adapted to not use it or not have it any more!
I think it is cool that they can detect electricity through their snouts, although it won't work through plastic. I think it is a good idea what Ava D. said, but what if the enemy let out a false electrical charge and snuck up on them? What if they could genetically breed new species of Guiana Dolphins who could have some slight layer of perception even through the plastic? Maybe other kinds of dolphins have a stronger "Electric Sense" than the Guianas.
I find this article very interesting.I wonder how strong the plastic was? If we covered our nose with certain types of plastic we might still be able to smell. That makes me wonder how strong there sense might be. If it isn't strong plastic, then that just proves how much electricity living creatures can make! And Ava, I think it would be cool if we could use them in the military. We would have to come up with some kind of way for the dolphin to communicate with us by telling us when it sensed something. There might have been more research done about what signs they might give when they sense an electric field. Overall I think it is so cool dolphins can do that! I hope to learn about cool senses other creatures have because I find that fascinating.
The plastic part makes no sense because plenty of phones have a hard plastic covering them but the electrical signatures are still detected so I'm guessing that a soft plastic wouldn't hold. Also the dolphin using the small electricity to hunt would be a bad idea because sound and other waves travel better though gas then though the water or solid sand where the dolphin hunts so why would the dolphin be able to detect the electrical signatures when animal who have a highly developed sense of smell couldn't even do that and marine life isn't to big on the sense of electrical discharges though it does have a history of having a strong feal which it detects thought the waves since it is most noticeable when there are more molecules in the area.
^Sorry about the errors on the previous posts; grammatical and scientific.
Ava, great idea but wouldn't the dolphin chase the submarine of our army. Even if it was trained to stay away from the electrical signature of that type of the submarine used by the U.S., wouldn't it fail and lead as into danger when the enemy submarine was the same model as ours.
I think this article was very interesting, and adding on to what Ava D. said, dolphins could be used for that. But we would have to be careful because the dolphins could be mislead by some things. Maybe a kind of plastic could be developed that still allows the sense to kick in, but make it detect within a certain range somehow.
I liked this article a lot. I had no idea that dolphins had no sense of smell. I guess you learn something everyday. I think it is amazing that a dolphin could detect electricity through there snouts, but they can not detect it with plastic over there snout.
I thought that this article was really interesting. I had no idea that dolphins had no sense of smell. About Ava D's idea, what if the dolphin sensed a fish and just followed the fish, it could head the ships in the wrong direction and the enemy could come up right behind them. Nick had a good thought. I also wonder other marine predators have the same sense. I wonder if all dolphins have the same sense. I wonder what kind of plastic they used to cover Paco's (the dolphin that they used to experiment) snout. I agree with Emory about how I thought about electricity being completely separate from natural things.
This does not have much to do with this article, but I just want to say that dolphins never sleep either.
It's truly amazing that dolphins can detect electricity. I also wonder if other species of dolphins or other animals can do this. I wonder if dolphins or other animals can detect electricity through other parts of their bodies.
This does not have much to do with this article, but I just want to say that dolphins never sleep. Just a cool fact I wanted to share... I posted this again because in the other one I said, "either" and that didn't make any sense.
I think it is interesting on how most of the dolphins senses are based on the snout dimples that detect electricity, because when there was a change in the electric field, the dolphin reacted, but when his snout was covered with plastic, he did not react when the electrical field changed.
I wonder what they detect when lightning strikes the water in their general area
That's so cool! I wonder if the dolphins rely on that alone to fish or also use other senses!
I think this is really cool. Like Emory said, dolphins and electricity are pretty much the exact opposites of each other, so I find it amazing that dolphins can sense electricity. I wonder if these dolphins have had this sense for a long time or if they got it somewhere during evolution. They could have sensed electricity even before we knew it existed. Also, there are a lot of stories about dolphins saving boats and humans. I was thinking that maybe, if other species of dolphins also have this sense, that's how they find the boats, or people.
I think this article was really interesting. I thought that it was cool because I never knew that someone could train dolphins to swim toward them, (or the fish) when they sensed the electric field. I once heard a true story of a dolphin saving a human who was about to be attacked by a shark, and this explains it.
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