 |
Most agree that humans have consciousness, or defined possessed of reason and emotion. But that is still a controversial matter is the existence of other beings with the elaboration of the above.
Many who thought dolphins and deer have emotions like humans. What about fish, small animals, or plants?
A scientist from the University of Stirling, Sonia Rey Planellas, and several other researchers have recently done a research as a way to answer these questions. Then it was discovered that the fish likely to have emotions.
The study was written in an article in The Conservation and reported by BBC
Scientists use different criteria to discuss whether animals have the capacity to express emotions and consciousness. They argue that the fish had a brain and cerebral cortex were relatively small and simple - the brain layer that serves to define intelligence, personality, motor function, planning, and touch.
They said that the fish showed little ability to learn, remember and behavioral repertoire that is very simple. Based on this, the response of the fish against adverse circumstances may be more than just an uncontrollable reflex, but still very simple and has little emotion even none at all.
However, other scientists do not agree on the matter. They said it is possible the fish have emotions or consciousness.
Although the brain is different from fish to mammals, but according to their own structures with the same evolutionary origin as part of the mammalian brain.
There are also a large number of studies that clearly show that fish have the capacity to learn impressive and use it to support a wide variety of complex behaviors. Many species of fish can show complex behavior such as navigation and remember mental maps.
Other fish can know their chances of winning the fight with observing and remembering previous fights with enemies.
Some others even make and use tools such as anvil - anvil hard to crack shelled animals.
Zebra fish are stressed more spending time in warm water (Photo: BBC / Alamy Stock Photo)
Currently, the researchers also know that fish can sense and respond to noxious stimuli such as acetic acid, which can also cause pain in humans. This includes the rights that go far beyond a simple reflex.
One of the particular properties that are used to identify awareness in fish is the ability to become stressed due to hyperthermia or emotional fever. This is a physical reaction akin to a fever due to an infection. Basically, the body temperature will be warmer when responding to stress.
Until now, researchers thought that among vertebrates only mammals, birds and reptiles can experience emotional fever. It is one form that indicates the animal has the capacity awareness.
But by studying the zebrafish described in situations of stress by confining them in small nets in the middle of the experimental tank, Sonia and her fellow scientists were able to prove that the fish has the capacity awareness. Because fish are cold-blooded animals, they should be moved to an environment with a temperature that is compatible with its internal physiological state.
After 15 minutes the fish was in the net, the fish are conditioned in a depressed condition will be released to swim between the other chambers that were in the tank, each of which is heated to a different temperature.
The fish are stressed to spend more time in warm water than other fish groups were not exposed to stressful situations. With increased body temperature between 2 to 4 degrees Celsius, the researchers concluded that the emotional fever is the cause.
The fact that only a few fish that can experience emotional fever, does not prove that all the fish are creatures who have awareness. It describes the aquatic animals are animals that have a complex mind and consciousness and, at least to a certain extent.
 |
Currently, the researchers also know that fish can sense and respond to noxious stimuli such as acetic acid, which can also cause pain in humans. This includes the rights that go far beyond a simple reflex.
One of the particular properties that are used to identify awareness in fish is the ability to become stressed due to hyperthermia or emotional fever. This is a physical reaction akin to a fever due to an infection. Basically, the body temperature will be warmer when responding to stress.
Until now, researchers thought that among vertebrates only mammals, birds and reptiles can experience emotional fever. It is one form that indicates the animal has the capacity awareness.
But by studying the zebrafish described in situations of stress by confining them in small nets in the middle of the experimental tank, Sonia and her fellow scientists were able to prove that the fish has the capacity awareness. Because fish are cold-blooded animals, they should be moved to an environment with a temperature that is compatible with its internal physiological state.
After 15 minutes the fish was in the net, the fish are conditioned in a depressed condition will be released to swim between the other chambers that were in the tank, each of which is heated to a different temperature.
The fish are stressed to spend more time in warm water than other fish groups were not exposed to stressful situations. With increased body temperature between 2 to 4 degrees Celsius, the researchers concluded that the emotional fever is the cause.
The fact that only a few fish that can experience emotional fever, does not prove that all the fish are creatures who have awareness. It describes the aquatic animals are animals that have a complex mind and consciousness and, at least to a certain extent.
0 Response to "Really Fish Have Feelings?"
Posting Komentar