Pacific salmon

Would you be able to tell if the wild Alaskan sockeye salmon you ordered for dinner was swapped out for a less expensive piece of farm-raised salmon?

For the observant, the color difference between the two would likely be the first giveaway. (Sockeye has a deeper red-orange hue.) Or maybe you'd notice the disparity in the thickness of fillet. (Sockeye is flatter and less steaky in appearance.)

SDOT / Flickr

The lethal effects of urban runoff that kills some salmon and their prey can be reversed by filtering the water through a common soil mix, according to new research by state and federal scientists.

When it rains or people wash their cars, the water that runs over pavement picks up toxic chemicals such as oils, heavy metals and residue from car emissions. This can go straight into our waterways.

Ted S. Warren / AP Photo

Scientists have said it's safe to eat fish caught in the Pacific Ocean in the wake of Japan's Fukushima Daiichi nuclear disaster, but rumors continue to circulate on the Internet. 

To quell these false claims and put consumers at ease, a Seattle fish company has conducted independent tests to prove Pacific salmon is safe for consumption.