Marine researcher Marianne Nyegaard has identified the first new species of sunfish in over 130 years.
Pupils and staff at Stanford Avenue Elementary were left perplexed by a bout of very strange weather.
Hundreds of large barrel jellyfish have been washing up on beaches along the British coastline this week.
Marine biologists have recorded footage of a remarkable jellyfish in the depths of the South Pacific.
Visitors to the Australian east coast at the weekend were greeted by a thick blanket of blue jellyfish.
As many as 20,000 fish and other sea creatures have recently washed up in Canada and nobody knows why.
Vast quantities of mackerel and pilchard have washed up along the shore for the second time this month.
A new species of the mysterious arapaima has been discovered in the remote backwaters of the Amazon.
Back in the 1980's, California houseboat residents had reported hearing a strange humming noise at night.
A Philadelphia woman had been out walking when a large fish suddenly fell out of the sky on top of her.
Kevin Bain of Aberdeenshire was surprised to discover dozens of small fish lying in his garden.
Scientists have identified a whole new species of whale following years of stories from local fishermen.
An old camera fished up from the bottom of the sea was found to contain some rather remarkable footage.
Scientists have filmed an extremely rare type of fish more than 2,500ft below the surface of the sea.
Swimmers have been urged to be on the lookout due to a rise in the number of blood-sucking sea lampreys.
Scientists exploring the depths of the Mariana Trench have come across an otherworldly looking creature.
The fossil organ was discovered inside the remains of a fish specimen dating back 119 million years.
A huge 1,500-year-old Viking fishing village site has been unearthed during excavations at an airport.
Mystery surrounds the deaths of several hundred fish found along the shoreline to the south of Perth.
Scientists have identified the first ever baby giant squid in specimens fished up off the coast of Japan.