Octopuses do not need to see or smell their prey to identify it. Researchers have shown that the suckers lining each arm contain specialized receptor cells that detect chemicals on contact, giving the ...
Octopus arms can detect and respond to chemical signals from prey without waiting for instructions from the brain.
People have different tastes. It turns out that octopuses, squid and cuttlefish do too. These soft-bodied cephalopods have proteins on suckers along their tentacles that allow them to “taste” by ...