Crabs usually eat algae. Crabs are omnivorous, meaning that they will eat both plants and other animals for sustenance.Know More
Various species of crab have slightly different diets. They have a very strong digestive system that permits them to eat fungi, mollusks, bacteria, worms and even other crustaceans, such as shrimp or barnacles. In times of desperation, they have been known to eat the offal from the sea floor, which can include dead and decaying animals.
Like most omnivores, crabs require a balanced diet to maintain the highest degree of health and reach their maximum growth potential. Their systems need both the protein found in meat as well as the vitamins present in undersea vegetables to sustain quality digestion.Learn more about Crabs
Niches refer to the various adaptations that allow crabs to survive in their environments, and they are used to describe the specific habitats that crabs inhabit, such as below rocks and along shorelines. Niches that help crabs survive include physical adaptations such as large claws.Full Answer >
There are more than 1,300 species of freshwater crabs and, as such, there is no one diet consistent to all of them. However, most are omnivores and scavengers.Full Answer >
Hermit crabs kept as pets can easily live for over 10 years if cared for properly. One crab owner, Carol Ormes of Ft. Myers, Florida, kept a pair of crabs that lived to be over 30 years old.Full Answer >
Most ocean crabs are considered carnivores and eat just about any meat they can find. There are a few species that are omnivores, however, and eat plants as well as meat.Full Answer >