Hippos, the animal silicon pumps

The excrement of hippos plays an important role in the ecosystem of African lakes and rivers. Because there are fewer and fewer hippos, this ecosystem is in danger. In the long term, this could lead to food shortages at Lake ...

Okinawan sea grapes reveal secrets of plant evolution

If you've ever dined on the tropical island of Okinawa, Japan, your plate may have been graced by a remarkable pile of seaweed, each strand adorned with tiny green bubbles. Known as umi-budo or sea grapes, the salty snack ...

Catchy names for exotic algae

Unicellular algae, to which the so-called dinophytes belong, are important primary producers in marine and freshwater habitats and, as such, they provide a vital source of food for other organisms. They also serve as indicator ...

The odor of stones

Diatoms are unicellular algae that are native in many waters. They are a major component of marine phytoplankton and the food base for a large variety of marine organisms. In addition, they produce about one fifth of the ...

Short circuit in the food web

They are amongst the most numerous inhabitants of the sea: tiny haptophytes of the type Emiliania huxleyi. Not visible to the naked eye, when they are in bloom in spring, they form square kilometer sized patches, they are ...

The key to adaptation limits of ocean dwellers

The simpler a marine life form is built, the better it is suited for survival during climate change. Scientists of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) discovered this in a new ...

Why red algae never colonized dry land

The first red alga genome has just been sequenced by an international team coordinated by CNRS and UPMC at the Station Biologique de Roscoff (Brittany), notably involving researchers from CEA-Genoscope, the universities of ...

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