Octopus
An octopus is a soft-bodied, eight-armed marine animal known for its intelligence, camouflage abilities, and jet-propelled swimming.
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Bus-sized cephalopods reminiscent of the legendary kraken may have sat at the top of the food chain, using their smarts to hunt down prey in the oceans of the Late Cretaceous. -
Even without noses, octopuses are able to determine which food sources are good to eat and which have gone past their prime simply by touching them. The secret, says a new study, lies with surface microbiomes and some very sensitive suckers.