The Rocks are Alive?
Many of us are intrigued by the large animals seen at Haystack Rock, which unfortunately leaves most people to step over, or even on, hundreds of very delicate creatures that cover almost every visible rock, barnacles! Barnacles are crustaceans, related to crabs and shrimp. Although we mostly only see them motionless and stuck to rocks, they expend lots of energy to stay alive and live in a variety of places! The first stage of a barnacle’s life is a free swimming, one-eyed larva. It hatches from a fertilized egg as a result of sexual reproduction. The barnacles mission at this stage is to find a surface to live on for the rest of its life. This could be attached to a rock, a ship, a whale, a crab, or any other hard surface which will allow the animal to settle. The method barnacles use to attach themselves to surfaces in a wet environment is rather intriguing. Researchers have recently (2014) discovered that this is a two-step process. The first substance that is s...