On the News @ New Scientist
Squid evolved in marine wars more than 100 million years ago
“An evolutionary war that raged beneath the sea more than 100 million years ago created the octopus and squid, new research has shown.
Cephalopods – the tentacled creatures that include octopuses, squid and cuttlefish – possess some extraordinary traits such as instantaneous colour changing, ink squirting, jet propulsion and polarised vision.
Octopuses are also known to be highly intelligent for invertebrates and display an ability to solve complex problems.
Until now the origins of cephalopods, which evolved from ancient marine molluscs with shells, have been shrouded in mystery.
The new research from scientists at the University of Bristol, in the UK, suggests that the octopus and its relatives developed their bizarre body plans and unusual abilities during a period of upheaval beneath the waves known as the Mesozoic Marine Revolution. (…)” READ MORE
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