News tagged with aquatic animals
'Natural causes' at fault for Peru dolphin deaths: officials
Nearly 900 dolphins that washed up along Peru's northern coast since the start of the year died of natural causes, a top official said Tuesday, citing a government report that failed to convince environmental ...
May 22, 2012 |
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Dry rivers, vibrant with culture and life
'When the River Runs Dry' is a familiar song in Australia. Some rivers in the arid center of the continent flow only after a stiff monsoon season, and smaller tributaries all over the country commonly shrink to puddled potholes ...
May 07, 2012 |
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Unexpected crustacean diversity discovered in northern freshwater ecosystems
Freshwater ecosystems in northern regions are home to significantly more species of water fleas than traditionally thought, adding to evidence that regions with vanishing waters contain unique animal life.
Mar 02, 2012 |
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A small step for lungfish, a big step for the evolution of walking
The eel-like body and scrawny "limbs" of the African lungfish would appear to make it an unlikely innovator for locomotion. But its improbable walking behavior, newly described by University of Chicago scientists, ...
Dec 12, 2011 |
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Pristine reptile fossil holds new information about aquatic adaptations
Extinct animals hide their secrets well, but an exceptionally well-preserved fossil of an aquatic reptile, with traces of soft tissue present, is providing scientists a new window into the behavior of these ...
Other Sciences / Archaeology & Fossils
Nov 16, 2011 |
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Testing of seafood imported into the US is inadequate
Finfish, shrimp, and seafood products are some of the most widely traded foods and about 85 percent of seafood consumed in the U.S. is imported. A new study by researchers from the Johns Hopkins Center for a Livable Future ...
Nov 09, 2011 |
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Switching senses: Biologists find that leeches shift the way they locate prey in adulthood
(PhysOrg.com) -- Many meat-eating animals have unique ways of hunting down a meal using their senses. To find a tasty treat, bats use echolocation, snakes rely on infrared vision, and owls take advantage of ...
Nov 01, 2011 |
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Herbivorous fish like eating meat
The grass carp, thought to be a strict vegetarian, seems to have a preference for amphipoda. NWO researcher Liesbeth Bakker made this discovery during her research into the food preferences of fish. The discovery ...
Oct 19, 2011 |
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Report casts world's rivers in 'crisis state'
(PhysOrg.com) -- The world's rivers, the single largest renewable water resource for humans and a crucible of aquatic biodiversity, are in a crisis of ominous proportions, according to a new global analysis.
Sep 29, 2010 |
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New study documents use of hormone progesterone in simple microscopic aquatic animals
A new study shows that humans and tiny aquatic animals known as rotifers have something important in common when it comes to sex.
Jun 14, 2010 |
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Airborne nitrogen shifts aquatic nutrient limitation in pristine lakes
The impact of airborne nitrogen released from the burning of fossil fuels and wide-spread use of fertilizers in agriculture is much greater that previously recognized and even extends to remote alpine lakes, ...
Space & Earth / Earth Sciences
Nov 05, 2009 |
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Traces of pharmaceuticals found in central Indiana waterways
(PhysOrg.com) -- Pharmaceuticals have been found in freshwater ecosystems in rural areas of central Indiana, says a new study from Ball State University.
Oct 20, 2009 |
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Freshwater fish at the top of the food chain evolve more slowly
For avid fishermen and anglers, the largemouth bass is a favorite freshwater fish with an appetite for minnows. A new study finds that once they evolved to eat other fish, largemouth bass and fellow fish-feeders ...
Jul 28, 2009 |
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Fossil evidence of missing link in the origin of seals, sea lions, walruses found in Canadian Arctic
(PhysOrg.com) -- Researchers from the United States and Canada have found a fossil skeleton of a newly discovered carnivorous animal, Puijila darwini. New research suggests Puijila is a "missing link" in the ...
Other Sciences / Archaeology & Fossils
Apr 22, 2009 |
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Tiny super-plant can clean up animal waste, be used for ethanol production
Researchers at North Carolina State University have found that a tiny aquatic plant can be used to clean up animal waste at industrial hog farms and potentially be part of the answer for the global energy ...
Apr 07, 2009 |
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