In nature, it is quite rare to encounter octopi with extra tentacles (or "arms," for the purists), but a pair of aquariums in Japan's Mie prefecture have some extraordinary specimens on hand.
Those are just Fantastic! Thanks
A surprising aerodynamic innovation in wind turbine design called the 'wind lens' could triple the output of a typical wind turbine, making it less costly than nuclear power.
A guide to over 200 green, organic and sustainable gifts ideas for the holidays
The weird-looking male of this newly discovered planthopper species mimics ants, says Quentin Wheeler
Spotted once in 1840 and then never seen again, one of the world's most bioluminescent mushrooms has been rediscovered deep in the Brazilian wilderness.