3d-printing amateur-science ascidian barnacle behavior biology biomechanics birds body-size botany brittle-star cell cell-biology centrifuge chemistry ciliates citizen-science classes clouds cnidarians colonial-animals colonial-organisms color cooking crabs cracks crystallization ctenophores database development developmental-biology diy echinoderms ecology education elasticity embryo engineering epibionts evolution eye eyes fish flow fluid fluid-flow fluid-mechanics fluids food forams freshwater frost fungi growth hydra ice image-processing indie-science ink inter-tidal invertebrates lab-techniques larvae locomotion marine marine-ecology marine-invertebrates measurement mechanics microbiology microscope microscopy migration mimicry modeling molllusk mollusk mollusks mushroom naturalist nudibranch ocean oceanography open-source-science ophiuroid optics organismal-biology pattern-formation physarum physics piv plants polychaetes predation protists regeneration scallops science science-hobbyist science-outreach sea-slug sea-urchins seeds self-organization shells size slime-mold smell snails social-science sociology software spectrometry staining starfish students surface-tension tardigrades taste teaching trees viscoelasticity vision visualizing waves weather winter