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  2. Electroreception and electrogenesis - Wikipedia

    en.wikipedia.org/wiki/Electroreception_and...

    An electric fish generates an electric field using an electric organ, modified from muscles in its tail. The field is called weak if it is only enough to detect prey, and strong if it is powerful enough to stun or kill. The field may be in brief pulses, as in the elephantfishes, or a continuous wave, as in the knifefishes.

  3. Electric fish - Wikipedia

    en.wikipedia.org/wiki/Electric_fish

    Electric organ discharges are two types, pulse and wave, and vary both by species and by function. Electric fish have evolved many specialised behaviours. The predatory African sharptooth catfish eavesdrops on its weakly electric mormyrid prey to locate it when hunting, driving the prey fish to develop electric signals that are harder to detect.

  4. Sensory systems in fish - Wikipedia

    en.wikipedia.org/wiki/Sensory_systems_in_fish

    The shark has the greatest electrical sensitivity of any animal. Sharks find prey hidden in sand by detecting the electric fields they produce. Ocean currents moving in the magnetic field of the Earth also generate electric fields that sharks can use for orientation and possibly navigation. [26]

  5. Ampullae of Lorenzini - Wikipedia

    en.wikipedia.org/wiki/Ampullae_of_Lorenzini

    These fibres signal the size of the detected electric field to the fish's brain. [14] The ampulla contains large conductance calcium-activated potassium channels (BK channels). Sharks are much more sensitive to electric fields than electroreceptive freshwater fish, and indeed than any other animal, with a threshold of sensitivity as low as 5 nV/cm.

  6. Communication in aquatic animals - Wikipedia

    en.wikipedia.org/wiki/Communication_in_aquatic...

    For example, a horse can sniff the air to detect pheromones but a fish which is surrounded by water will need a different method to detect chemicals. Aquatic animals can communicate through various signal modalities including visual, auditory, tactile, chemical and electrical signals. Communication using any of these forms requires specialised ...

  7. Scientists launch study to determine whether dogs can predict ...

    www.aol.com/scientists-launch-study-determine...

    The tagging technology used in the study could help us understand why some animals travel thousands of miles each year, like those who migrate between Europe and Africa, as well as work out how ...

  8. Developmental bioelectricity - Wikipedia

    en.wikipedia.org/wiki/Developmental_bioelectricity

    Developmental bioelectricity is the regulation of cell, tissue, and organ-level patterning and behavior by electrical signals during the development of embryonic animals and plants. The charge carrier in developmental bioelectricity is the ion (a charged atom) rather than the electron , and an electric current and field is generated whenever a ...

  9. Tesla seeks approval for sensor that could detect child left ...

    www.aol.com/news/tesla-seeks-approval-sensor...

    Tesla Inc. asked the Federal Communications Commission (FCC) for approval to market a short-range interactive motion-sensing device that could help prevent children from being left behind in hot ...