Good sources of dietary fiber include: 1  Beans and legumes. 2  Fruits and vegetables, especially those with edible skin (for example, apples, corn and beans) and those with edible seeds (for example, berries). 3  Whole grains such as:  Whole wheat pasta.
Examples of invertebrate animals are: slugs, snails, bugs, earthworms, spiders, lobster, starfish, crabs, squid, barnacles, scorpions, sponges, anything without vetabrate/spine/backbone.
Some of these are considered in Research Studies below. Invertebrate predators of adult crabs are most commonly other crabs and octopuses, and these are dealt with in Research Studies on the specific predator-type involved (e.g., octopuses will be found under topics of feeding/foods in their own section in the ODYSSEY.