The “head” of an octopus is actually its body—a bellows-like sac called the mantle, which houses its organs. To breathe, the octopus opens its mantle wide and expels water over the gills and out a muscular siphon.
Phase 1/3 for this crystallized fish skeleton is done! This is a little sneak peek at a piece I’ll have for a group show curated by @jawcooper at @bakerhesseldenz
This epic show will feature the artistic talent of @jawcooper herself, @marcomazzoniart and @wes_burt this October! More info (and sneak peeks) to come!!!
#tylerthrasher #crystallized #fish #skeleton #sneakpeek #alchemy #chemistry #tulsa
As you may know by now, octopuses can control both their color (thanks to their chromatophores) and their skin structure. The size of their skin projections, calledPapillae is controlled through muscular hydrostat.
A muscular hydrostat is a biological structure mainly made of muscles with little or no skeletal support, which can easily change shape to bend, extend, etc. Some other examples of muscular hydrostats are our tongue and an elephant’s trunk. This is how the octopus can appear smooth, bumpy or spiky at will.
This video is a close-up of the octopus’s papillae. You can clearly see the muscular hydrostats at work, amazing !
#DidYouKnow - The narrower the pupil in relation to the horizon, the greater accuracy of depth perception in peripheral vision? Pair that with the fact that the octopuses optical nerve fibers are behind retina and you get absolutely no blind spot which means an octopus can see everything that is going on in their environment. Pretty cool huh nation?! 📸: Gustavo Maqueda
An octopus has usually a double row of circular suckers, which are strong muscular structures. When pressed against a surface, they create low pressure in the suction cup that provides grip.
Squid suckers (2-3)
Squid suckers have an inner ring of hooks and teeth, which are both stretchy and strong. They help them hang onto their prey by perforating the skin. The third picture shows for example the hooks at the end of a colossal squid’s tentacle.