Some sap-sucking slugs have external shells. Dog owners are advised to be vigilant as deadly sea hares have washed up along Falcon Bay. Furthermore, they will release a kind of ink when feeling threatened. As opposed to Nudibranches they have an internal shell for protection. They are however, preyed upon by lobsters and crabs, but an attempt by humans to eat sea hares can cause sickness. - Since these creatures have no shell to hide in, they rely on a defensive spray to keep predators at bay. All nudibranchs are carnivores. What do we know about this sea slug? - The marine-dwelling sea hare converts pigment from its food into a chemical weapon. The sea bunny slug is a fascinating underwater creature that has little in common with an actual rabbit, despite its appearance. Sea hares, clade Aplysiomorpha, are medium-sized to very large Opisthobranchia with a soft internal shell made of protein. This is not poisonous, but should be removed by changing the water. Sea hares are very effective at eating most types of algae, although not all of them, so do research this beforehand. Instead, sea hares use poisonous secretions from their skin and a can shoot a cloud of purple ink to deter predators. Sea hare eggs are … Studies are being conducted on the acquiring of secondary metabolites in sea hares, including metabolites from algae in Aplysia dactylomela. Because of that toxin in their skin and in their ink, you should be vigilant that your dog doesn't lick or eat a sea hare. The common name “sea hare” is direct translation from Latin lepus marinus, as the animal’s existence was known in Roman times. The common name, sea hares, possibly originated during the time of Aristotle in Ancient Greece when a Mediterranean species was likened to a sitting hare, the large parapodia resembling the rounded back, and the rhinophores resembling the ears. Sea slugs are common marine animals, found all around New Zealand. Just remember: They’re quite small, less than an inch … The colorful nudibranchs are doomed as soon as they're collected for aquaria, there isn't any viable way to feed them. Sea hares eat seaweed and tend to be seasonally abundant in synchrony with blooms of their food source. Sea hares can be given away to someone with a lot of algae, and may eat nori. Sea hares are not afraid of people, they contain no ability to bite or sting, and their skin is not poisonous to humans. There are many species in New Zealand, but one species in particular, Pleurobranchaea maculata, has been linked to the deaths of dogs on Auckland beaches in 2009. Apparently Aristotle fancied sea hares as being poisonous to the touch, but they’re not. Sea hares appear to accumulate most secondary metabolites from red algae (Rogers, 2000). Some sea slugs are toxic, but this sea slug has not previously been … Some sea hares have internal shells. Most eat immobile animals such as sponges, bryozoans and ascidians. If you’re interested in observing the sea bunny slug during a scuba diving trip you’ll need to travel to the Indo-Pacific Ocean, anywhere from South Africa to the central Pacific, to find them. Fact sheet and media information. Sea Hares. Sea slug expert, Ángel Valdés of California State Polytechnic University in Pomona, said that these creatures only live a few months up to a year. These are marine gastropod molluscs. However, the skin does secret a toxin that helps it avoid being eaten by predators. I don't see a sea hare in any of these pics.