An endangered fish found off the coast of Florida is exhibiting strange behavior, including "spinning and whirling." The government is mounting an emergency response.

The aquarium reported that the dead fish was 6.9 feet long, which is considered average in size. Mola mola can grow up to 10 feet long and weigh as much as 5,000 pounds.

A weird-looking 3.5-foot-long fish was found washed up on an Oregon beach on Wednesday—and identified as a rare sighting of an opah. The Seaside Aquarium in the city of Seaside said the fish ...

The Seaside Aquarium said in a Facebook post last week that the after photos of the massive 7.3-foot fish caused "quite a stir on social media," New Zealand researcher Mariann Nyegaard believed it ...

An "odd-looking" deep-sea fish recently washed ashore on an Oregon beach to the surprise of a local aquarium. The Seaside Aquarium in Seaside, Oregon, published pictures of the dead fish in an ...

When you think about climate change in our oceans, you may picture coral bleaching, melting sea ice, or extreme weather ...