Happy Holidays from the ASO Team! This year we're all collectively sharing the seasonal cheer, just like Sonic and pals are! See if you can tell who drew who!
And what's that Sonic is holding? Open on Dec. 31st, huh? Guess you'll all need wait just a bit longer for the surprise.
Art by @drawloverlala, @pichi-08, @sofibeth-arts, @lankstir21, @salsacoyote, @corythec, @nebuleeart, @little30flames, @kitareartist, @arantarisu-yamu, @darknoisestudio, Tempo, AluSniper, The Magyar, JonnyUnique, Dict.Cola, Sea-Salt, Gaia Ruggenini, Tom Carter “IndexSonic”, _GR33N_RAT_, Nekasa, JaSketch, Pesky-Pincushion, and AidenEye!
By studying calcifying organisms, Leanne aims to better understand the impacts of human activity on marine ecosystems. Through her research, she hopes to influence policy that helps protect marine calcifiers in the future.
“Why is this important? The idea is that the more porous the shell, the weaker it is. Mussels need strong, robust shells to protect their inner soft organs—and that strong 3D structure is important for ecosystem function as habitat formers and storm defenses.
Currently, the changes seen in shell porosity are not large enough to influence the material properties, so we aren’t seeing weaker shells just yet. But with further warming in our oceans being predicted, this could potentially lead to even more porous shells, potentially impacting mussels’ function as habitat formers and storm defenses, as well as their ability to protect themselves from predation,” Melbourne explains.
Despite the appearance, shipworms are actually a mollusc! These bivalves have evolved to use their shells not for protection, but for boring through driftwood.
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Interested in learning more about the invertebrate animals around us? Join into the year-long InsertAnInvert event organized by Franzanth, where every week a new animal is spotlighted! Draw unique animals, read up on cool facts, or just follow the tag online to see a lot of cool artwork.
The shells of bivalve molluscs are formed on the left and rights sides of their bodies, and so are usually roughly bilaterally symmetric.
But some bivalves break that arrangement, developing asymmetrical valves that can be massively different in size and shape.
Gryphaea arcuata was an oyster that lived during the Early Jurassic, about 200-174 million years ago, in the warm shallow seas that covered what is now Europe and eastern Greenland. Around 6cm long (~2.4"), its left valve was thick and strongly convex and curled, while the right valve was relatively thin and slightly concave forming a "lid".
The gnarled curled claw-like shape of Gryphaea fossils led to them being colloquially known as "devil's toenails" in some of the regions where they're commonly found, with folk beliefs that they had the power to prevent joint pain.
Their shape was actually an adaptation to living on very soft seafloor sediments. The larger curled valve acted sort of like a boat on the soupy mud, supporting the Gryphaea's weight and preventing it from sinking.
Learning that some bivalves can swim felt like opening a whole new world of wonder. There's never an end to what is to be discovered!
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Interested in learning more about the invertebrate animals around us? Join into the year-long InsertAnInvert event organized by Franzanth, where every week a new animal is spotlighted following each monthly theme! Draw unique animals, read up on cool facts, or just follow the tag online to see a lot of cool artwork.