Why it's awesome: Earth's oceans are home to many secretive and unusual creatures that humans rarely see — including giant ...

Not only do they occupy disparate branches of the animal family ... The so-called immortal jellyfish resembles a tiny, hairy thimble and lives in the Mediterranean Sea and also off Japan.

Today these otherworldly creatures can be found around the world, from coastal shallows to the ocean deeps. Jellyfish are invertebrates – animals that don’t have a backbone – and belong to a group ...

The box jellyfish is often regarded as one of the most venomous creatures inhabiting the world’s oceans. Belonging to the ...

The most common sea animals are those without a backbone, such as jellyfish and shrimp. There are thousands of species of ...

Our oceans are filled with fascinating marine life. Of course, they're not all harmless. Avoid these venomous creatures while ...

When it comes time to migrate, new research has found how a free-living coral ignores the classic advice and goes straight towards the light.

The spectacle of thousands of jellyfish at Hobart's waterfront dock may be breathtaking, but a leading scientist has warned ...

Q. I enjoy learning about bizarre animals like the terrestrial one you recently wrote about called a hammerhead worm. With all the strange animals found on land, the oceans must ...