Sponges primarily use chemicals to protect themselves, and the chemicals are either toxic or just taste bad. This not only prevents predation but also competition, as the chemicals they release prevent other organisms from growing near them. Individual species have other strategies, such as burrowing into corals, rocks or molluscs to gain protection.Continue Reading
Another strategy many corals use to keep predators such as sea stars away is shedding tiny bits of their skeletal elements, called spicules, onto the sea floor. These can accumulate in a thick layer, deterring predators that must crawl to reach them. Not all sponges have a direct defense mechanism. Glass sponges do not produce any toxins, but they live in the very deep ocean where predators are rare.
Despite their defenses, sponges can only make slight movements, when they can move at all. They are vulnerable to any organisms that can overcome their defenses and are prey to many species of turtles, fish and invertebrates. Sponges can partially benefit from predation, however, as fragments of sponge left behind by predators can often survive and re-establish themselves as independent organisms. Their extremely simple cell-level organization means they can often survive even severe damage caused by predators or environmental effects.Learn more about Marine Life
Sea sponges are bottom-dwelling, multi-cellular animals. Most sea sponges attach themselves to the ocean floor, other sea animals or rocks for the duration of their lives. A small number of sea sponges are mobile creatures that move along the ocean floor at the rate of 1 to 3 millimeters per day.Full Answer >
There are literally millions of animals that live in coral reefs and that live around the reefs, but a few specific species of animals that live in coral reefs are corals, clams, sponges, sea horses and certain types of fish. Sea turtles, lobsters and other species like to live near coral reefs and depend on them for survival.Full Answer >
Some sponges have radial symmetry, but many species are irregular in shape and have no symmetry at all. Two simpler groups of sponges, known as asconoid and syconoid sponges, often have radial symmetry, but members of the most complex group, leuconoid sponges, have no symmetry.Full Answer >
Sea monkeys are actually brine shrimp, which are found in salt lakes, such as the Great Salt Lake in Utah. Therefore, to see pictures of real sea monkeys, an image search for "brine shrimp" is the best way.Full Answer >