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Two new electric eel species have been identified in the Amazon basin, including one fish with a record-breaking shock, scientists say. Researchers had previously identified only one species of electric eel in more than 250 years of studying the creatures that lurk in South American waters and stun their prey with electric discharges. However, the new genetic and ecological analysis, published Tuesday in the peer-reviewed Nature Communications, identifies a total of three unique [...]

What was once known as a single species of electric eel is actually three different species, with one of the newly classified organism producing the highest voltage discharge of any known animal, according to a study. The research, published in the journal Nature Communications, offers new insights into the origin and production of strong electric discharges in fishes. Electric eels belong to the knifefish family, and are closely related to catfish and carp than to other eel families, the [...]

A victim's jawbone has revealed the intensity of Hiroshima radiation after the U.S. dropped the first atomic bomb the Japanese city during World War II in 1945, and the result was stunning, according to The Washington Post. The study of the jawbone collected 27 years after the bombing by Brazilian physicist Sérgio Mascarenhas, who was at the time a visiting professor at Harvard University, could not be completed in the 1970s because of technology, the newspaper said. But a new technique [...]

Brazilian scientists have developed an HIV vaccine and plan to begin testing on monkeys later this year, a sponsor institution said Monday. Known as the HIVBr18, the vaccine against the virus that causes AIDS was developed and patented by a team from the Medicine Faculty of the University of Sao Paulo, the Sao Paulo state Research Foundation (FAPESP) said. The scientists said that, at its current stage of development, the vaccine would not totally eliminate the virus from the organism. But [...]