This week’s post is from Lauren Sumner-Rooney, a post-doctoral researcher at the Museum für Naturkunde. If you would like to write for Anatomy to You, get in touch via Facebook or Twitter. The featured image shows a specimen of a new species of Zetela (a snail), removed from its shell. Image: Natural History Museum, Specimen: Museum National…
Tag: evolutionary constraint
Section through an octopus shows the mouth passing through the brain
Octopuses and other cephalopods are well-known for their exceptional intelligence and complex brains, which appear to outstrip all other invertebrates’. But, they work within one strange constraint – like all other molluscs (snails, slugs, oysters and more), the nerve ring at the centre of their nervous system encircles the oesophagus. In cephalopods, this nerve ring…
Anatomy To You 