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Female squid pheromones trigger fighting among males
A newly-identified pheromone produced by female squid - the first of its kind found in marine creatures - is thought to induce aggression in males.
February 15, 2011
Life on recycled water: The 80 percent solution
We can limit freshwater use by using mostly recycled water. Read more about how to make our precious resource last longer here.
February 13, 2011
Underground water draining twice as fast today as in 1960
We're taking water out faster than it's being replenished, says hydrologist Marc Bierkens. Read more about underground water and how fast it's draining.
February 11, 2011
America’s last wild buffalo are in danger, says scientist
A new study suggests that buffalo in Yellowstone National Park could be weakened by a genetic abnormality in the herd.
February 9, 2011
For some blenny fish species, looks can be deceiving
DNA analysis is changing the way we classify fish. A recent Smithsonian study of fish thought to be three species of Starksia blennies were actually ten different species, seven of which were hiding in plain sight.
February 9, 2011
An undersea slug that’s pink and electric blue
Nudibranchs - better known as sea slugs - are small creatures. But their color is pretty splashy. Read more about the bright pink electric blue undersea slug.
February 8, 2011
Water flea has the largest number of genes known
Of all the animals genome sequenced to date, the tiny water flea has the highest number of genes, more than mice, roundworms, yeast, bacteria ... and humans.
February 7, 2011
The Egyptian jackal is actually a wolf in disguise
Recent DNA studies show that the Egyptian jackal is actually a new subspecies of the gray wolf.
February 6, 2011
Egg helps determine gender of 160-million-year-old reptile fossil
A fossilized pterosaur, or pterodactyl, skeleton has been found in China, preserved alongside her unhatched egg. The find sheds light on an ancient biological mystery.
February 5, 2011
The frog that re-evolved to reclaim its missing teeth
For as many as 200 million years, frogs lived without lower teeth. But one frog species has managed to "re-evolve," restoring those missing teeth.
February 4, 2011
