ELECTRIC EELS AND THEIR SUPERCHARGED MUSCLES Between 100 and 200 million years ago, some fish began to amplify that potential. They evolved electrocytes from muscle cells, which were organised in sequence and capable of generating much higher voltages than those used to make muscles work.
How did electric eels become electric?
Nerve fibres join each electrocyte on one of its sides, but not the other. The arrival of a signal causes positively-charged sodium ions (Na+) to flood into the cell. This flow of ions gives rise to a temporary potential gradient across the cell, and a discharge of electricity.
How did eels evolve?
Ancestral eels evolved during the Eocene or earlier, in the western Pacific Ocean near present-day Indonesia. A group derived from this ancestor dispersed westward, by transport of larvae in the global circum-equatorial current through the northern edge of the Tethys Sea.
What was electric eel before electricity?
Indigenous people in Venezuela called it arimna, or “something that deprives you of motion.” Early European naturalists referred to it as the “numb-eel.” And for 250 years, since it was first given a Latin name, Western scientists have known it as Electrophorus electricus, the electric eel, the sole member of its genus
How long have electric eels been on Earth?
Based on genetic comparisons, de Santana and colleagues determined that two groups of electric eels began to evolve in South America about 7.1 million years ago. One, the common ancestor of E. voltai and E. electricus, lived in the clear waters of the ancient highlands, whereas E.
How strong is 600 volts?
At 600 volts, the current through the body may be as great as 4 amps, causing damage to internal organs such as the heart. High voltages also produce burns.
Why do electric eels not shock themselves?
They reduce the danger to themselves by flexing their bodies in a shape that prevents the electric current from passing through their heart. When they are charging up, they stiffen into a line segment very much like a straightedge. This way, the electric current only runs parallel to their tail and behind the heart.
Are eels asexual?
Researchers believe they spawn via external fertilization. The females release millions of eggs into the water where they are fertilized by the male’s sperm. After this, they die. The reproduction of eels has long been a mystery.
Can eels change gender?
All blue ribbon eels undergo an immense transformation within their lifetime. At birth, they begin life as males and as they mature they make the switch and become females. Although seemingly remarkable, in the fish world, this occurs more than you might think.
Did eels live with dinosaurs?
An eel recently discovered in an underwater cave appears to have evolved out of step with the rest of us, retaining primitive characteristics associated with animals from the dinosaur era.
Can eels electrify water?
It depends! A finite and limited space around eel, sea water conduct electricity(salty water; more ions) for very small period of time. To make the whole ocean electrified, continuous and constant electric source is required.
Can we harvest energy from electric eels?
It is possible to use an electric eel to produce electricity. But consistency is the problem. For the electricity to be useful, the eel would need to keep releasing it at a constant rate. It produces approximately 1 amp at 500v.
Are electric eels edible?
Can you eat an electric eel? Yes, you can eat an electric eel. But they are not a good source of food for humans because they are very bony and provide very little sustenence.
Can an electric eel power a light bulb?
While Wattson isn’t actually powering the lights outside the tank, it could. Big electric eels (which are not technically eels, but rather a type of knifefish) can discharge between 10 and 850 volts in a blast and easily power several DC 40-watt light bulbs for a second.
How many volts can a human sustain?
The human body has an inherent high resistance to electric current, which means without sufficient voltage a dangerous amount of current cannot flow through the body and cause injury or death. As a rough rule of thumb, more than fifty volts is sufficient to drive a potentially lethal current through the body.
How old is the oldest eel?
The Brantevik Eel (Swedish: Branteviksålen) (Before 1859 – Before 7 August 2014), also known as Åle, was a European eel (Anguilla anguilla) that is believed to have lived for more than 150 years. The eel was released into a well in the town of Brantevik, Sweden in 1859 by an eight-year-old boy, Samuel Nilsson.
Can a human survive 1000 volts?
Voltage levels of 500 to 1000 volts tend to cause internal burns due to the large energy (which is proportional to the duration multiplied by the square of the voltage divided by resistance) available from the source. Damage due to current is through tissue heating and/or electroporation injury.
Can you survive 20000 volts?
Thus, in the absence of high voltage, flowing current cannot flow through the body or cause injury or death. For example, a shock of 20,000 volts is passed through the body but the current is extremely low and duration is short, the shock would be harmless.
What kills you voltage or current?
If the voltage presented no danger, no one would ever print and display signs saying: DANGER—HIGH VOLTAGE! The principle that “current kills” is essentially correct. It is electric current that burns tissue, freezes muscles, and fibrillates hearts.
Are electric eels AC or DC?
The electric eel, however, emits not a direct current but an alternating current (in pulses), and its charge is depleted after a strong shock. Its electric organ takes some time to recharge. Even so, an encounter with a group of these animals in the water can be quite perilous.
Does it hurt to touch an electric eel?
The average shock from an electric eel lasts about two-thousandths of a second. The pain isn’t searing — unlike, say, sticking your finger in a wall socket — but isn’t pleasant: a brief muscle contraction, then numbness. For scientists who study the animal, the pain comes with the professional territory.