Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
fish , thebarreleye .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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But I do have one amusing story: I read a report about a type of fish called a spookfish, which has these amazing eyes, where every single eye has two bits: one that looks upwards, and has a sort of typical vertical lens configuration, and one that points downwards, which uses a mirror to focus objects much like a lens.
SEEDMAGAZINE.COM boustead@seedmediagroup.com 2010
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Jan 07, 2009 | not rated yet | no comments yet A remarkable new discovery shows the four-eyed spookfish to be the first vertebrate ever found to use mirrors, rather than lenses, to focus light in its eyes.
PhysOrg.com - latest science and technology news stories 2009
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The spookfish needs one half to point upwards, to capture faint glimmers of light from the sea surface 1,000m above.
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The brownsnout spookfish has been known for 120 years, but no live specimen had ever been captured.
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"The diverticular eyes image these flashes, warning the spookfish of other animals that are active, and otherwise unseen, below its vulnerable belly."
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The article, titled "A Novel Vertebrate Eye Using Both Refractive and Reflective Optics," describes the unusual eyes of the spookfish, Dolichopteryx longipes.
PhysOrg.com - latest science and technology news stories 2009
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The spookfish however, manages to focus light in the lower eye without using a lens.
PhysOrg.com - latest science and technology news stories 2009
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In the few other species of deep-sea fish that possess split eyes, the upper eye has a lens, like in the spookfish, for focusing light.
PhysOrg.com - latest science and technology news stories 2009
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In the spookfish, the mirror sits in front of the retina and serves to focus light, providing an image that's much brighter than a lens could produce.
PhysOrg.com - latest science and technology news stories 2009
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The spookfish has a pair of mirrors (black) to focus light from below into its eyes
vanishedone commented on the word spookfish
Science Daily: 'Although the spookfish was first discovered 120 years ago, no one had discovered its reflective eyes until now because a live animal had never been caught.'
January 8, 2009