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www.reference.com/pets-animals/eats-sponges-7788c7b0b34cd315

Many species of sponge produce toxic substances when attacked by a predator. A fire sponge is potentially harmful when touched, producing a substance that can cause painful burning and itching. Most sponges have needle-like structures, or spicule, made from calcium carbonate, silica or spongin.

www.mesa.edu.au/porifera

A few species of sponge are carnivorous preying mainly on small crustaceans and other small animals. A few species of fish, seaslugs and hawksbill turtles eat sponges, many sponge species contain toxic substances as well as sharp spicules to discourage predators. Azure vase sponge (Callyspongia plicifera) A demosponge

en.wikipedia.org/wiki/Sea_sponge

Sponge flies, also known as spongilla-flies (Neuroptera, Sisyridae), are specialist predators of freshwater sponges. The female lays her eggs on vegetation overhanging water. The larvae hatch and drop into the water where they seek out sponges to feed on. They use their elongated mouthparts to pierce the sponge and suck the fluids within.

www.quora.com/What-predators-do-sponges-have

Sponges are well known as being tough to swallow - literally- due to toxic chemicals and tough or glassy skeletons. Several groups of marine animals still make meals of these organisms. Hawksbill sea turtles are sponge feeders. Several groups of f...

www.answers.com/Q/What_are_the_predators_of_sea_sponges

Many sea sponges, like anemones, use toxins to repel would-be predators. Some species of sea slugs, however, such as Platydoris scabra, have evolved immunity against the toxins of specific sponge ...

www.answers.com/Q/What_is_the_sponge_predator

Many sea sponges, like anemones, use toxins to repel would-be predators. Some species of sea slugs, however, such as Platydoris scabra, have evolved immunity against the toxins of specific sponge ...

deepoceanfacts.com/sea-sponges-facts

Predators of sea sponges commonly encountered are sea turtles, fish and insects in the Neuroptera and Sisyridae groups that are predators for freshwater sponges. The other predators are devouring sea sponges as well such as; starfish and some types of nudibranchs (sea slugs).

www.pbs.org/wgbh/evolution/survival/coral/predators.html

Many sea sponges, like anemones, use toxins to repel would-be predators. Some species of sea slugs , however, such as Platydoris scabra , have evolved immunity against the toxins of specific ...

www.reference.com/pets-animals/sponges-protect-themselves-8a92e6bec30c71f6

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.

a-z-animals.com/animals/sponge

Sponge Sponges are very slow-moving animals that are found across the sea floor. Although many sponges actually move less than a millimetre a day, some adult sponges are actually sessile, which means that they are fixed onto something and do not move at all.. Sponges are thought to have evolved around 500 million years ago, and today there are more than 5,000 known species of sponge with ...