Built for blurs: jellyfish have great eyes that can't focus.(This Week)(evolutionary biology)

From: Science News | Date: May 14, 2005| Author: Milius, S. | Copyright information

Eight of the eyes on a box jellyfish have surprisingly good lenses, yet the structure of the eyes keeps them from focusing sharply, according to a new optics study.

Sharp focus may be what people and most other vertebrates want out of their lenses, but box jellyfish thrive with fine lenses and a blurry, wide picture, say Dan E. Nilsson of Lund University in Sweden and his colleagues in the May 12 Nature.

"Box jellyfish may teach us something about how the firs...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Fed: Box jellyfish death preventable: marine expert
AAP General News (Australia) ; AAP General News (Australia) 01-09-2006 Fed: Box jellyfish death preventable: marine expert By Janelle Miles, National Medical Correspondent BRISBANE ...
Fed: Box jellyfish death preventable, says marine expert
AAP General News (Australia) ; AAP General News (Australia) 01-10-2006 Fed: Box jellyfish death preventable, says marine expert An expert says being stung by a box jellyfish is ...
QLD: Scientists can now predict box jellyfish seasons
AAP General News (Australia) ; AAP General News (Australia) 05-09-2001 QLD: Scientists can now predict box jellyfish seasons BRISBANE, May 9 AAP - Scientists can now accurately ...
Box jellyfish warnings issued by safety division [Derived Headline]
Honolulu Star - Bulletin ; face=+2; Box jellyfish warnings issued by safety divisionface=-2; Star-Bulletin staff Box jellyfish are expected to come ashore over the next few days, according to an advisory from the city's ocean safety division. The influx is expected to peak on Tuesday and be over by Thursday. The most
Qld: Lifesaver fighting for life after box jellyfish mixup
AAP General News (Australia) ; AAP General News (Australia) 01-04-2000 Qld: Lifesaver fighting for life after box jellyfish mixup BRISBANE, Jan 4 AAP - A teenage lifesaver who ...
Qld: Lifesaver survives box jellyfish mixup
AAP General News (Australia) ; AAP General News (Australia) 01-04-2000 Qld: Lifesaver survives box jellyfish mixup A teenage lifesaver is fighting for his life in hospital after ...
Qld: Box jellyfish kills girl, 7 - police believe
AAP General News (Australia) ; AAP General News (Australia) 01-09-2006 Qld: Box jellyfish kills girl, 7 - police believe By Jade Bilowol BRISBANE, Jan 9 AAP - The deadly box jellyfish ...
Qld: Boy dies after box jellyfish sting
AAP General News (Australia) ; AAP General News (Australia) 01-25-2000 Qld: Boy dies after box jellyfish sting BRISBANE, Jan 25 AAP - A five-year-old boy has died after being ...
Box jellyfish sting more than 300
Honolulu Star - Bulletin ; face=+2; Safety officials say swimmers are disregarding signs posted in Waikikiface=-2; More than 300 people were stung by box jellyfish in Waikiki yesterday, seemingly ignoring warning signs. "They just go in anyway. We get people that hang their towels on the signs," said Rob Miller, dispatcher
Qld: Facts about box jellyfish
AAP General News (Australia) ; AAP General News (Australia) 01-04-2000 Qld: Facts about box jellyfish Facts about the box jellyfish. * found in northern coastal waters between ...