Jellyfish

Eye Evolution Problem

Eye evolution problem reported in Current Biology published online 19 July 2018 doi: 10.1016/j.cub.2018.05.055. A large and diverse group of invertebrates, the cnidarians, including jellyfish, corals and sea anemones, vary a lot in their ability to detect light and see their surrounding environment.  Some have no eyes, some have eye spots and others have eyes […]

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Brown Eared Bulbul

Birds Disperse Stick Insects

Birds disperse stick insects, according to reports in Science News and ScienceDaily 28 May 2018, and Ecology, 29 May 2018, doi: 10.1002/ecy.2230. Stick insects are found throughout the world and scientists have wondered how they could have spread to land masses that are separated by long distances. Stick insects are large and don’t fly so […]

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Giant Clam

Clams Recycle Urea for Algae

Clams recycle urea for algae, according to reports in Inside JEB 19 April 2018, and Journal of Experimental Biology 14 March 2018, doi: 10.1242/jeb.176313. Giant clams live in close symbiotic relationship with marine algae known as zooxanthellae, which produce nutrients for the clam by photosynthesis.  The algae can make sugars from carbon dioxide and water, […]

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Feathered Dinos Had Ticks

Feathered dinos had ticks, claim scientists in articles in, National Geographic 12 December 2017, BBC News and ScienceDaily 13 December 2017, and Nature Communications doi:10.1038/s41467-017-01550-z published online 12 December 2017. An international team of researchers from Spain, USA and UK have found three species of ticks preserved in amber from Burma. The amber is dated […]

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Scallops Have Telescope Mirror Eyes

Scallops have telescope mirror eyes, according to reports in Science (AAAS) News and Live Science 30 November 2017, and Science doi: 10.1126/science.aam9506, 1 December 2017. Scallops are bivalve shellfish that have many tiny round eyes. The eyes have an unusual structure – they have two retinae (light sensitive layers) and a mirror that focuses the […]

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Trilobites

Oldest Eyes Like Modern Eyes

Oldest eyes like modern eyes, claim scientists in reports in ScienceDaily 6 December 2017, BBC News 7 December 2017 and PNAS doi:10.1073/pnas.1716824114, published online 4 December 2017. A group of scientists from Scotland, Germany and Estonia have studied the eyes of a trilobite fossil Schmidtiellus reetae found in Estonia rocks dated as 530 million years […]

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Fluorescent Coral

Corals Light Up

Corals light up as fluoro symbiosis found, according to Nature News 5 July 2017, Nature Middle East 20 July 2017 and Proceedings of the royal Society B doi: 10.1098/rspb.2017.0320, published online 5 July 2017. Coral reefs have long been known as a classic example of symbiosis, consisting of a combination of coral polyps and algae. […]

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Starfish Keep Their Cool

Starfish keep their cool according to an article in American Naturalist, vol. 174, pp. 890-897, 14 Oct 2009 and BBC News 28 Oct 2009. Starfish living in the intertidal zones can easily become overheated if they are left high and dry and exposed to the sun during a low tide because they cannot move until […]

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Spider Bubble Doubles Air Supply

Spider bubble doubles air supply, and more, according to articles in ABC News in Science and BBC Nature News 9 June 2011, and ScienceDaily 13 June 2011. The diving bell spider Argyroneta aquatic lives underwater in rivers and ponds, but breathes air. It lives, eats, mates and lays its eggs in a bubble of air […]

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Spider Ages by 80 Million Years

Spider ages by 80 million years, according to a report in Cretaceous Research, Volume 27, June 2006, Pages 442-446. David Penney and Paul Selden have found the first fossils of a spider that now lives in New Zealand. The fossils were found in Cretaceous ambers found in Manitoba and Alberta in Canada. The fossils are […]

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