Oceanography
How many oceans are there on earth?
Does the Earth have 1, 4 or 5 oceans? This seems like a simple question, but the answer is still not agreed upon by scientists.
Oceanography
Dive into ocean science, marine life, deep-sea discoveries, polar ecosystems, underwater geology and mysteries hidden beneath the world's oceans.
Latest in Oceanography
Articles & explainers
2,285 published items in this category and its subcategories.
Oceanography
Amazing facts about the Challenger Deep, the deepest place on Earth
Just as the Earth's land surface has huge peaks and valleys, the ocean world has similarly varied terrain.
Oceanography
Interspecies mating causes blue whales to have 'ghost' DNA
The finding of heterospecific DNA in Atlantic blue whales could raise new questions about genetics and species relationships in the marine environment.
Oceanography
38-year-old male manatee dies from mating with his brother
An autopsy revealed that Hugh the manatee at the Mote Marine Laboratory and Aquarium in Florida died from injuries sustained while mating with his brother.
Oceanography
Italy declares war on invasive green crabs by eating them
The voracious blue crabs are threatening Italy's fishing industry, forcing the government to allocate $3.2 million from emergency funds to find ways to deal with them an…
Oceanography
Seawater is salty and cannot be drunk directly, how do dolphins replenish water?
Dolphins need water to survive and function, but in the ocean, they cannot drink seawater directly. So how do dolphins rehydrate?
Oceanography
Another species is developing a human-like brain.
Despite being separated by 500 million years of evolution, the blueprint for a complex, intelligent brain is preserved in the bodies of two species, one of which is huma…
Oceanography
Billions of precious Alaskan crabs suddenly and mysteriously 'disappear'
Scientists were stunned when they received the survey results and discovered the cause of the disappearance of Alaskan crabs.
Oceanography
Four new species appear as 'hybrids' of extraterrestrial creatures
The deep waters of the Pacific Ocean have revealed four new species belonging to a family that scientists suspect is
Oceanography
How do marine animals drink filtered water?
How do marine creatures get filtered water to sustain life when all around is salt water? The answer will surprise you about the wonderful creation of nature!
Oceanography
How deep is the ocean?
The average depth of the ocean is about 3,700m. The deepest point in the ocean known today is Challenger Deep in the Mariana Trench with a depth of about 10,935m (nearly…
Oceanography
The world's most mysterious Omura whale discovered in the sea of Thailand
Some Thai scientists have just recorded a fish suspected to be an Omura whale in the waters of Koh He (Thailand). This is an animal that is very difficult to encounter b…
Oceanography
Scientists puzzled by mysterious 'golden egg' found at the bottom of the deep sea, unclear what this object is
According to researchers, in the context that two-thirds of life forms in the deep oceans are not fully understood by humans, this latest discovery could mark an excitin…
Oceanography
Is the blue whale's heart really the size of a car?
There are many rumors that the largest animal on our planet - the blue whale - has a heart the size of a car, but this is not necessarily true.
Oceanography
1,000m tall 'strange object' emerges off California coast
The Saildrone Surveyor ocean mapping mission has discovered a giant, hot, strange object unlike anything seen on Earth before.