Starfish don’t have arms, they are ‘heads that can crawl’
Scientists conduct groundbreaking genetic study that finds the marine creatures have evolved with a very unusual body plan
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Scientists conduct groundbreaking genetic study that finds the marine creatures have evolved with a very unusual body plan
Helen Czerski’s Blue Machine casts new light on the strangeness of the sea – and is a marvellous encouragement to horizon-gazing
Academics credit drone technology for maritime discovery that unpicks the puzzle of ‘hafgufa’ – a creature said to swallow boats whole
The relationship between humans and sharks is a strange and unbalanced one – but these amazing creatures are largely misunderstood
Orcas spend large amounts of their time with certain individuals who are often of the same sex and similar age, research finds
Marine mammal believed to have travelled 2,650 miles to Britain on an ice floe seems to have now crossed the Bristol Channel
The animal's jaws contained more than 80, inch-long serrated teeth and its body was covered in extra strong scales
The annual international competition celebrates photography beneath the surface of oceans, lakes and rivers
The robot moves more efficiently than propeller-powered craft and could be safely used close to delicate coral or shipwrecks
Duobrachium sparksae was discovered during a dive off the coast of Puerto Rico in 2015