Questions tagged [cephalopods]

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1answer
64 views

DNA shared by octopuses and modern humans

What percentage of DNA do we share with octopuses? I tried looking it up but couldn't find the answer on the internet. Could someone enlighten me on the same? To make the question more specific, I am ...
1
vote
1answer
31 views

lifespan of Nautilus compared to other cephalopods

Most cephalopods live uncharacteristically short lifes compared to other creatures of their size and intelligence. The octopuses with the longest lifespan for example, the giant pacific octopus, only ...
2
votes
0answers
79 views

What causes the shape of the dense structure in this “giant squid egg” sac?

The YouTube video Swimming Next To Giant Squid Egg shows a giant egg of a squid and/or an egg of a giant squid. Text in the video's description includes the text quoted below, which indicates that the ...
27
votes
1answer
20k views

Does the octopus have an anus? What does it look like?

Octopuses are cephalopods, which have separate anal and oral openings. Indeed, descriptions of the cephalopod GI tract clearly depict an anal opening. However, I am very confused about how this ...