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44.4 Electromagnetic Reception
They respond to local tissue damage or stimuli that may cause it, with the help of the skin of its bill that can detect small damage.
Nociceptors can't respond to electric currents from its prey.
This feat is from damaged cells.
Small particles of iron oxide in the beaks of damaged cells allow them to release a number of substances, including acids and small signaling molecule called prostaglandins, which act as a compass.
The magnetite particles that cause inflammation and make nociceptors more sensitive to pain respond to the Earth's magnetic field.
Pigeons were placed individu to reduce pain.
The nociceptors travel to the tube.
When the tube was placed in a magnetic field, pigeons looked at the cause of the pain.
The limbic system, which holds memories of the tube, is also sent to which end is based on the magnetic signals.
In another experiment, the pigeons lost this abil and emotions associated with pain, and to the reticular formation in ity when their beaks were anesthetized or cooled down.
Magnetic field sense is not unique to birds.
Magnetite can be found in the heads of migratory fishes such as rainbow trout.
This probably doesn't explain the extraordinary many animals.
There are pits on each side of the head that animals use to sense their surroundings.
There is a wide range of the waves emitted by live animals.
The snake moves its head back and forth between the visible light and the electrical light until both pits detect the same intensity of radiation.
The prey is centered in front of the snake.
The ability of some animals to sense electric long-distance migration or low-light environments will be examined.
When light and magnetic fields are present.
Many animals have the ability to detect the presence of nearby prey.
The more ways an animal can detect other animals, the better it is at avoiding danger or getting food.
In fishes, specialized sensory structures detect electric fields in the environment.
There are two types of electrical activity.
Many fishes living in dark waters can detect the weak electric field generated by the muscles and nerves of other animals.
In order to do this, they use sensitive electroreceptors located in the head region.
The importance of this sense for their sur vival can be seen in the fact that these sensory receptors are as heavily innervated as the eyes of these fishes.
The rays and sharks can detect the small signals of prey hidden beneath a layer of sand on the ocean floor.
The fish can sense a white-lipped through sensory pits.
If a pit viper moves close to the animal, it will detect the heat given off by the prey.
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