Some #nudibranch action yesterday on the #murionislands. Thanks to exmouth dive center for the day! ( @exmouthdivingcentre )Early scientists often included the taste of the nudibranch in their description, which they tested by licking them. Needless to say, this is not a common practice now and is not recommended.
Along with the chemical defence comes very bright colours, used as a warning: it is nature's equivalent of yelling "Stay away! Don't eat me! I'm poisonous."