Ocean
Israeli scientists pioneer way to monitor sea urchins as die-offs threaten coral reefs worldwide
Sea urchins play a vital role in maintaining the delicate balance of coral reef ecosystems by feeding on algae that compete with corals for sunlight.
US Coast Guard responds to Russian military ship near waters off Oahu
Lockheed Martin, Saildrone to advance armed USV capabilities for US Navy
Scientists found a 3.5-meter dolphin fossil in a desert that was once an ancient ocean
'Red tide' turns Argentina's beaches crimson: Massive macroalgae invasion hits Mar del Plata
The 'red tide' is a natural phenomenon caused by the massive shedding of algae from deep waters, which can be triggered by storms or the natural aging of the algae.
Mysterious black devil fish spotted for first time near ocean surface, Spain
The black devil fish is described as "a true predator of the depths" that uses "symbiotic bioluminescent bacteria as bait to lure its prey, in the same way as in the popular movie Finding Nemo."
Discovery of 'dark oxygen' challenges understanding of oxygen production
The discovery challenges traditional photosynthesis concepts, revealing new possibilities for life in harsh environments, Science noted.
Mysterious 'encounters' keep happening: Norwegian sail boat severely damaged by orcas off the coast
Researchers prefer to speak of encounters and interactions rather than attacks and assume that the orcas do not act with aggressive intent.
Orca Tahlequah mourns loss of second calf, carries dead offspring again
Due to food scarcity, up to 69% of Southern Resident killer whale pregnancies do not result in viable calves.
A killer on the loose? 44 dead seals found since October still baffle German authorities
Preliminary investigations have ruled out natural causes of death for the seals.
The loneliest journey: Humpback whale goes on 8,106 miles journey to find new breeding grounds
The male whale may be increasing its reproductive chances by mingling with other populations.
5 miles below the ocean surface, there's an eyeless predator. Researchers named it 'Darkness'
The discovery marks the first known active large predator of its kind in one of the deepest oceanic zones.
Researchers imaging an ice-free Arctic, and it may happen much sooner than we thought
Researchers conducted over 300 computer simulations to project when this first ice-free day might occur.
With salmon hats, Orca fashion goes back to the 1980s
Photograph of orca J27 Blackberry with salmon on head marks first sighting of behavior in nearly 40 years.
