alphynix:programaticallydelicious:This is a didemnum molle, which is a species of sea squirt. A coup
alphynix:programaticallydelicious:This is a didemnum molle, which is a species of sea squirt. A couple more pictures below:Despite looking more like a sponge or coral, sea squirts are actually chordates – close relatives of vertebrates! The relationship is more obvious if you look at their tadpole-like larval stage before it metamorphoses into the filter-feeding bag-shaped adult form.The vivid green coloration in these ones comes from symbiotic algae living inside their tissues. -- source link