Search results
Results from the WOW.Com Content Network
An octopus (pl.: octopuses or octopodes [a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒ k ˈ t ɒ p ə d ə /, ok-TOP-ə-də [3]).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.
During reproduction, the male octopus deposits a spermatophore (or sperm packet) more than 1 m (3.3 ft) long using his hectocotylus (specialized arm) in the female's mantle. The hectocotylus is found on the third arm of male octopuses and occupies the last four inches of the arm. [39] This part of the male arm anatomy contains no suckers.
Macroctopus maorum is a large octopus and it is regularly described as a ‘robust’ species, it is a member of the Octopus macropus species complex. The morphological traits characteristic of this complex are a high number of gill lamellae, a robust conical copulatory organ and arms of varying length with long unequal dorsal arms generally four to six times longer than the mantle.
This genera of octopus provides stability of habitat biodiversity as well as expanding the balance of marine food webs. Various species of blue-ringed octopus may help control populations of Asian date mussels. Additionally, future research on tetrodotoxins produced by the blue-ringed octopus may produce new medicinal discoveries. [27]
Amphioctopus fangsiao, called webfoot octopus, [2] is a species of octopus, a cephalopod belonging to the genus Amphioctopus. [3] It is found in the Pacific Ocean, including off the coasts of New Zealand [4] as well as in the Yellow Sea and surrounding Chinese shores. It is also commercially fished. [5] [6]
Scientists were expecting the octopus to work on problem-solving solutions by understanding how the screw top lid works and opening it with its arms. But the octopus bypassed the screw top completely.
A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
For premium support please call: 800-290-4726 more ways to reach us