Science in the square

I helped out last Friday at the University of Exeter – Cornwall Campus event ‘Science In The Square’ (see for a short description my work blog ‘coastal pathogens‘). Briefly, the aim was to set up several small plastic trays and tanks with interesting local rock pool creatures and explain some fun facts to the general public (specifically kids). For instance, in one exhibit showing amongst others coralline algae, star ascidians and barnacles you had to guess which organisms were plant and which were animal (glossing over the fact that algae are not technically plants but OK). In another display (‘who’s the daddy’) we explained that it is the males in worm pipefish that are pregnant, not the females. In another display we explained that tunicates have larvae with a tail and spinal chord and that they are evolutionary more closely related to us than are for instance crabs, snails or starfish, something that is not very obvious when looking at the adults:


The star ascidian Botryllus schlosseri. (For some pictures of the related colonial ascidian Botrylloides leachi, see a previous post.) We had a couple of small tanks filled with a variety of animals and seaweeds:


A Giant goby Gobius cobitis, first time I saw one, almost 20 centimeters, quite impressive!