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Strange Cave-Dwelling Coral Discovered in Tropical Reefs
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A new species of coral has been discovered that clings to the ceilings of underwater caves in the western Pacific's Coral Triangle.
Able to tolerate low levels of light, the species lacks the symbiotic algae that most corals need to survive. The newfound species is related to deep-sea corals that survive in dark conditions below depths of 130 feet (40 meters), but so far, this species has been found no deeper than 115 feet (35 m), according to a description of the species published today (Oct. 11) in the journal ZooKeys.
The coral forms smaller polyps than its relatives and grows quite slowly, said study author Bert Hoeksema, a researcher at the Naturalis Biodiversity Center in Leiden, Netherlands, in a statement.
Its range overlaps with the Coral Triangle, a region that's well-known for its high diversity of marine organisms. The species has been dubbed Leptoseris troglodyta. The word "troglodyte" is derived from ancient Greek and means "cave dweller."
Investigations into how the coral is able to survive without symbiotic bacteria could shed light on the relationship between the two species. This relationship is critical; when water temperatures increase — as is happening in the world's oceans now — many corals may expel their algae, in a process known as coral bleaching. This often leads to the coral's death.
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it wont move at all because molecules want to be where there is most mass and that is the .5 salt so it will stay where it is at and not go into red blood cell
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During primary succession on land, fungi and lichen are the most common pioneer species. They break down minerals in the rock to form soil, which allow subsequent communities to colonize the area .
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Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
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