Yahoo News 30 Apr 08;
The largest squid ever caught began to reveal its secrets Wednesday, including eyes the size of beach balls that one scientist said were likely the biggest ever known in the animal kingdom.
The 495-kilogram (1,090-pound) colossal squid -- accidentally caught by a fishing boat in Antarctic waters in February 2007 -- is slowly thawing under the fascinated gaze of a team of scientists at the Museum of New Zealand.
While the defrosting was taking longer than expected Wednesday, one of the earliest revelations were eyes measuring 27 centimetres (11 inches) across -- about 11 times the size of a human eye -- with lenses of 10 to 12 centimetres in diameter.
"We saw two of the most sensational eyes possible," Auckland University of Technology marine biologist Steve O'Shea said.
Those figures are based on the current collapsed state of the eyes.
If the squid were alive, said Professor Eric Warrant of the University of Lund in Sweden, the eyes would probably measure about 40 centimetres across, "about the size of a beach ball."
"These are without doubt the largest eyes that have ever been studied and probably among the largest eyes that have existed during the history of the animal kingdom," he wrote in a blog on the Wellington-based museum's website.
These would help the squid to locate prey in the dark of its habitat 1,000 metres (3,300 feet) or more below the surface of Antarctic waters.
The exact dimensions of the squid will not be determined until it is fully defrosted later Wednesday but it was believed to be eight metres (26 feet) or more in length.
Two long tentacles carry up to 25 rotating hooks each and eight arms each contain up to 19 hooks used to capture prey and bring it to its beaked mouth.
The sex of the squid was still to be determined, although it was thought likely to be a female, which grow larger than males.
But O'Shea and his colleagues believe that larger squid still lurk in the southern ocean depths.
The squid's lower beak measures around 40 centimetres across, while other beaks have been found -- usually in the stomach of predator sperm whales -- measuring up to 49 centimetres.
O'Shea said it is possible that colossal squid (Mesonychoteuthis hamiltoni) may grow to up to 750 kilograms but there was not yet enough information to be sure.
"When I said in 2003 that colossal squid could grow to 500 kilograms no one believed me, I was ridiculed, people laughed at me," he said.
The progress of the thawing is being shown live by webcams on the museum's website www.tepapa.govt.nz
Study: Giant squid has biggest eyes in world
Ray Lilley, Associated Press Yahoo News 30 Apr 08;
Marine scientists studying the carcass of a rare colossal squid said Wednesday they had measured its eye at about 11 inches across — larger than a dinner plate and the biggest animal eye on earth.
One of the quid's two eyes, with a lens as big as an orange, was found intact as the scientists examined the creature while it was slowly defrosted at New Zealand's national museum, Te Papa Tongarewa. It has been preserved there since being caught in the Ross Sea off Antarctica's northern coast last year.
"This is the only intact eye (of a colossal squid) that's ever been found. It's spectacular," said Auckland University of Technology squid specialist Kat Bolstad, one of a team of international scientists brought in to examine the creature.
"It's the largest known eye in the animal kingdom," Bolstad told The Associated Press.
The squid is the biggest specimen ever caught of the rare and mysterious deep-water species Mesonychoteuthis hamiltoni, or colossal squid. It is 26 feet long and weighs almost 1,000 pounds, but scientists believe the species may grow as long as 46 feet.
"This is the largest eye ever recorded in history and studied," said Swedish professor Eric Warrant of the University of Lund, who specializes in vision in invertebrates. "It has a huge lens the size of an orange and captures an awful lot of light in the dark depths in which it hunts."
They can descend to 2 kilometers (6,500 feet) and are known to be aggressive hunters.
