Octopus | 水產百科網
Octopusaresoft-bodied,eight-limbedmolluscsoftheorderOctopodaTheorderconsistsof...Theoctopus(alongwithcuttlefish)hasthehighestbrain-to-bodymassratiosofallinvertebrates;itisalsogreaterthanthatofmanyvertebrates.
Soft-bodied eight-limbed order of molluscs
An octopus (PL: octopuses or octopodes, see below for variants) is a soft-bodied, eight-limbed mollusc of the order Octopoda (, ok-TOP-ə-də[3]). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids. Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a beaked mouth at the center point of the eight limbs.[a] The soft body can radically alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight appendages behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse of all invertebrates.
Octopuses inhabit various regions of the ocean, inc...
9 brains, 3 hearts | 水產百科網
Cephalopod Brains | 水產百科網
Cephalopod intelligence | 水產百科網
Do octopuses' arms have a mind of their own? Researchers ... | 水產百科網
Octopus | 水產百科網
Octopus Arms Are Capable of Making Decisions Without Input ... | 水產百科網
Octopuses keep surprising us | 水產百科網
The Mind of an Octopus | 水產百科網
Why the Octopus Brain is so Extraordinary | 水產百科網
【日本魷Todarodes pacificus】赤魷 (Ommastrephidae)
水產分類:南中國海魚類圖說(I)中文名稱:日本魷學名:Todarodespacificus科別名稱:赤魷(Ommastrephidae)命名學者:Steenstrup
【章魚之一種Octopus sp.】章魚 (Octopodidae)
水產分類:南中國海魚類圖說(I)中文名稱:章魚之一種學名:Octopussp.科別名稱:章魚(Octopodidae)命名學者:(vulgarisCuvier?)
【大尾魷魚Sepioteuthis lessoniana】鎖管 (Loliginidae)
水產分類:南中國海魚類圖說(I)中文名稱:大尾魷魚學名:Sepioteuthislessoniana科別名稱:鎖管(Loliginidae)命名學者:Lesson
【墨魚之一種Sepia sp.】烏 (Sepiidae)
水產分類:南中國海魚類圖說(I)中文名稱:墨魚之一種學名:Sepiasp.科別名稱:烏(Sepiidae)命名學者: