Engineering

Testing new turbines goes swimmingly with sensor fish

Working on top of Ice Harbor Dam, a team of PNNL researchers had little time to appreciate the view. It was a beautiful, sunny fall day in early October and the team was on its 4th day of releasing Sensor Fish to travel through ...

Energy & Green Tech

Government proposes release of Fukushima water to sea or air

Japan's economy and industry ministry proposed on Monday the gradual release or evaporation of massive amounts of treated but still radioactive water being stored at the tsunami-wrecked Fukushima nuclear plant.

Energy & Green Tech

Marine bioplastic made with fish waste, red algae wins prize

Laura Parker in National Geographic last year: Scientists have tried to get a handle on the amount of plastic that ends up in the seas and harm to birds, marine animals, and fish. .Billions of tons of plastic have been made ...

Business

Iceland tops Europe as most expensive

The hot springs of Iceland are not the only thing making tourists sweat, as a look at the hotel or lunch bill will tell you that most things cost more, sometimes much more, than anywhere else in Europe.

Robotics

Robots enable bees and fish to talk to each other

Through an imaginative experiment, researchers were able to get two extremely different animal species located far apart to interact with each other and reach a shared decision with the help of robots.

Software

Where is George? Ask this software to look at the crowd

George is a zebrafish. Along with Tom and 98 other mates, George swims freely in a laboratory tank at the Champalimaud Centre for the Unknown (CCU), in Lisbon, Portugal. A camera records from above a video of all the animals' ...

page 1 from 2

Fish

Tetrapods

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.

This text uses material from Wikipedia, licensed under CC BY-SA