The octopus
the crab's mortal enemy
the octopus ambushes the crabs in Shallow pools as the tide recedes
the octopuses eat up to three times their body weight each day for an adult that's the equivalent of 15 crabs
at low tide the Intrepid survivors finally reached the seaweed-covered rocks
and a well-deserved meal
the respite is short-lived they have a mere half hour before the tide turns
and they have to make their way back through another Marine minefield
Chain moray eels veritable crab killing machines
They have two rows of teeth on the upper and lower jaws to grasp and crush the crabs shells
their powerful sense of smell allows them to detect even the faintest odors dissolved
in the sea water
crabs are at the mercy of eels as the tide comes in and octopuses as it goes out
the two predators share the same taste in food
Fernando donorrogna is a small scale example of inter-species rivalry throughout the world
cephalopods and fish compete with the same prey, so the cephalopods
have access to more prey in order to grow to adulthood and reproduce