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Movement of corals around Japan provides evidence of global warming

Prior posts have noted that in terms of ascertaining evidence of global warming, it may be worthwhile to assess the numerous studies of various potential indicators (e.g., migration patterns, drought, relocation of biota). Add another indicator. A new study of reefs around Japan reveals that a handful...

Blue twilight may trigger spawning synchrony of corals

Corals are well known mass spawners. Many corals manage to emit eggs and sperm into water on the same evenings of the year; some coordinate the releases to within 20 minutes of each other, even though miles apart. Researchers have noted that on nights after a full moon, when the moon lags below the...

Unique Marine Ecosystems Indicate How Ocean Acidification Will Affect Sea Life

A number of adverse environmental impacts are projected to occur from global warming. Although several atmospherically located substances will drive temperature increases, significant levels of CO2 may acidify the oceans. Ocean acidification is the name given to the ongoing decrease in the pH (see Wikipedia...

Another maxim bites the dust: Isolated coral reefs can recover from bleaching

Stony corals that are reef-building corals (also known as Hermtypic corals [see http://en.wikipedia.org/wiki/Hermatypic_coral ]) require algae from the genus Symbiodinium [see http://en.wikipedia.org/wiki/Symbiodinium ] to be in a healthy condition. The loss of these intracellular Symbiodinium from the...

Do comb jellies indicate that evolutionary theory needs a serious rethink? Maybe instead they are a door to understanding the evolution of complexity

When viewing evolution over time, scientists generally favor parsimony, that is, lineages radiating from a common ancestor share most of the ancestor's features. This also means that animals at the bottom have simple features, which may grow more complex or which may become more specialized as other...