Some marine oligochaeta ( e. g. Olavius or Inanidrillus ) have obligate extracellular endosymbionts that fill the entire body of their host.

Some feed exclusively on fish, while others hunt marine mammals such as sea lions, seals, walruses, and even large whales.

Some local populations are considered threatened or endangered due to prey depletion, habitat loss, pollution ( by PCBs ), capture for marine mammal parks, and conflicts with fisheries.

Some extinct marine reptiles, such as ichthyosaurs, evolved to be viviparous and had no requirement to return to land.

Some marine organisms, like corals, kelp and seagrasses, are ecosystem engineers which reshape the marine environment to the point where they create further habitat for other organisms.

Some of these mammals would evolve into large forms that would dominate the land, while others would become capable of living in marine, specialized terrestrial, and airborne environments.

Some of mud from the dredging was deposited at the western edge of Middle Harbor Shoreline Park to become a shallow-water wetlands habitat for marine and shore life.

Some varieties can also tolerate marine climates and are cultivated as far north as Pembrokeshire in the British mainland and Washington in the United States.

Some marine diatom s – a key phytoplankton group

Some marine worms are tube worms, of which the giant tube worm lives in waters near underwater volcanoes, and can withstand temperatures up to 90 degrees Celsius or about 194 degrees Fahrenheit.

Some branchiurans are able to withstand rapid changes of salinity and will also switch hosts from marine to non-marine species.

Some cryptozoologists have suggested that the sea serpents are relict plesiosaurs, mosasaurs or other Mesozoic marine reptiles, an idea often associated with lake monsters such as the Loch Ness Monster.

Some marine creatures also pose a threat to diver safety.

Some species of Sergestidae live in fresh water, but most prawns are exclusively marine.

Some modification of the engine systems on those ships was undertaken to permit the burning of a lower grade of fuel ( i. e., marine diesel ).

Some diversification has taken place, with the city now having an industrial base formed of marine, education, information communication and technology, food, tourism, creative, environment and sports industries.

Some orders of heterotardigrades are marine, others are terrestrial, but as for all tardigrades, all are aquatic in the sense that they must be surrounded by at least a film of moisture in order to be active-though they can survive in a dormant state if the habitat dries out.

Some species, called zooxanthellae, are endosymbionts of marine animals and play an important part in the biology of coral reefs.

Some studies suggested the haplosporids, mostly parasites of marine invertebrates, might belong here but they lack alveoli and are now placed among the Cercozoa.

Some marine plywood has a Lloyd's of London stamp that certifies it to be BS 1088 compliant.

Some inland areas where soil and water lacks in iodine compounds and consumption of marine foods is low are known for higher incidence of goitre.

* Some marine gastropods have been used for oil lamps, the oil being poured in the aperture of the shell, and the siphonal canal serving as a holder for the wick.

Some designs use a mechanically driven Roots blower, whilst marine diesel engines normally use exhaust-driven turbochargers, with electrically-driven auxiliary blowers for low-speed operation when exhaust turbochargers are unable to deliver enough air.

Some Jains abstain from farming because it inevitably entails unintentional killing or injuring of many small animals, such as worms and insects, but agriculture is not forbidden in general and there are Jain farmers.

Some types of worms, such as leeches, also have an enlarged ganglion at the back end of the nerve cord, known as a " tail brain ".

Some foods naturally form a protein gel when cooked such as eels and elvers, and sipunculid worms which are a delicacy in the town of Xi amen in Fuji an province of the People's Republic of China.

Some insects, such as ant eggs and silk worms, are also eaten boiled in a soup in Isan, or used in omelets in northern Thailand.

Some worms can live in the trench.

Some ectoparasites, such as monogenean worms, rely on direct contact between hosts.

Some ultra-light rods are capable of casting lures as light as 1 / 64th of an ounce-typically small spinners, wet flies, crappie jigs, tubes, or bait such as trout worms.

Some species, particularly the ground-doves and quail-doves take a large number of prey items such as insects and worms.

" Some of the compounds we've identified by zoopharmacognosy kill parasitic worms, and some of these chemicals may be useful against tumors.

Some reddish worms form from long-standing snow which has turned reddish.

Some frozen foods, including frozen blood worms, add variety to their diets.

Some of these operations produce worms for bait and / or home vermicomposting.

Some cedars, Yellow cedar, and Redwood contain resinous oils that may harm worms, although Western Red Cedar has excellent longevity in composting conditions.

Some, such as tube grubs and gree worms, are nearly always served alive ( like the Klingon dish gagh ), while others are served jellied or in a juice form.

Some evidence suggests the effect on the cornea is caused by an immune response to bacteria present in the worms ..

Some filarial worms, such as M. streptocerca and O. volvulus, produce microfilarae that do not use the blood ; they reside in the skin only.

Some of the symptoms caused by several worm infestation can include itching affecting the anus or the vaginal area, abdominal pain, weight loss, increased appetite, bowel obstructions, diarrhea and vomiting eventually leading to dehydration, sleeping problems, worms present in the vomit or stools, anemia, aching muscles or joints, general malaise, allergies, fatigue, nervousness.

Some specimens preserved in alcohol made their way to the Academy of Natural Sciences, including a few gordian worms.

* USA: August 30, 2007: Some organic chocolates made in China recalled because there were worms inside the chocolate.

Some of the organisms that have been observed at whale falls are giant isopods, squat lobsters, bristleworms, prawns, shrimp, lobsters, hagfish, Osedax ( bone-eating worms ), crabs, sea cucumbers, octopuses, clams, and even deep-sea sleeper sharks.

Some of the more popular insects and arachnids eaten around the world include crickets, cicadas, grasshoppers, ants, various beetle grubs ( such as mealworms ), the larvae of the darkling beetle or rhinoceros beetle, various species of caterpillar ( such as bamboo worms, mopani worms, silkworms and waxworms ), scorpions and tarantulas.