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“The findings add fuel to an already fierce debate in the research community on how the echolocation sound is produced”, says Josefin Starkhammar.
,The beam projections have different frequencies and can be sent in different directions. The advantage is probably that the dolphin can locate the object more precisely.
—Josefin Starkhammar
Read moreThe world’s sharks are disappearing. These fearsome yet charismatic fish continue to fall victim to overfishing and many are now at risk of extinction as a result.
Read moreDead zones form where microscopic plants, known as phytoplankton, are fertilized by excess nutrients, such as fertilizers and sewage, that are generated by human activities and dumped into the ocean by rivers, or more rarely, where they are fertil
Read moreFor some years, researchers have pinned their hopes on the ability of weed-eating fish to keep the weeds at bay while the corals recover following a major setback like bleaching, a dump of sediment from the land, or a violent cyclone.
Read moreThe Gulf Stream which transports enormous amounts of warm tropical waters to the North Atlantic is the cause of Europe's habitable climate.
Read moreThis behavior seems to imply a map sense from which the creatures read either absolute or relative location from at least two coordinates.
Direction is one thing but how about position?
,Read moreThe results demonstrate for the first time that longitude can be encoded into the magnetic positioning system of a migratory animal.
"It has to do with where they are feeding in the water column and what they're eating," said Anela Choy, University of Hawaii-Manoa
Read moreNoise pollution in the oceans has been shown to cause physical and behavioral changes in marine life, especially in dolphins and whales, which rely on sound for daily activities.
Read moreSeveral theories have been put forward by experts as to why white sharks sometimes bite people. In this article we examine three of the most prominent theories and look at why most of these incidents are non-fatal.
Read moreAccording to the settlement, FEMA must consult with the U.S.
Read moreResearchers from the Center for Marine and Environmental Studies (CMES) have reported on part of a scientific examination of deep coral ecosystems south of St Thomas and St John, an area known as the southeastern Puerto Rican Shelf.
Read moreThe Coral Proto Free Ocean Carbon Enrichment (CP-FOCE) system was designed to add low pH water into experimental chambers on the reef to stimulate pH levels predicted to occur on coral reefs in the next 50-100 years.
Read moreSharks are known to "dive" frequently through the water column and many functions have been attributed to the behaviour, such as thermoregulation, search and reduction of the COT.
Read moreBeluga sturgeon populations have been decimated in part due to unrelenting exploitation for black caviar —the sturgeon's unfertilized eggs—considered the finest in the world.
Read moreBut in the journal Trends in Ecology and Evolution, Dr Slabbekoorn and colleagues in The Netherlands, Germany and US report how the underwater environment is anything but quiet.
Read moreUntil the 1990s, only two kinds of orcas were seen in the inshore waters of British Columbia, says John Ford, a zoologist at the University of British Columbia and a research scientist at the Pacific Biological Station run by Fisheries and Oceans
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