News tagged with daphnia

Scientists watch water fleas take over new territory

Look into any nutrient-rich pond almost anywhere in the world and you will find Daphnia pulex, a tiny crustacean (also called a water flea) that is a source of food for fish and fascination for scientists. A new study, reported ...

dateJul 19, 2016 in Ecology
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Transforming water fleas prepare for battle

Water fleas can thwart their enemies by growing defensive structures such as helmets and spines. What's more, this predator-induced 'arming' process is not a one-size-fits-all approach - they can even tailor their defensive ...

dateJul 06, 2016 in Plants & Animals
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Microevolutionary evidence: The eyes have it

For a beholder who is an evolutionary biologist, the eye is has long been a fascinating puzzle because of the many parts that must seamlessly work together for the whole to work properly. Biologists have addressed the question ...

dateNov 20, 2015 in Evolution
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Calcium loss turning lakes to 'jelly'

New research on a number of Canadian lakes show that historical acid deposits as a result of industry have greatly reduced calcium levels in the water - dramatically impacting populations of calcium-rich plankton such as ...

dateNov 18, 2014 in Ecology
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Scientists uncover an unhealthy herds hypothesis

Biologists worldwide subscribe to the healthy herds hypothesis, the idea that predators can keep packs of prey healthy by removing the weak and the sick. This reduces the chance disease will wipe out the whole herd, but could ...

dateJun 23, 2011 in Ecology
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