Description: Mint: Austrian Mint Denomination: €3 Quality: UNC Issue limit: 65,000 Alloy: Base Metal Diameter: 34 mm Weight: 16 grams Design: Helmut Andexlinger Box/Capsule: No/No Certificate: No The swell shark gets its name from its ability to inflate itself to roughly double its normal size by swallowing water as a form of protection from predators. But that’s not its only amazing property – the hero of the second coin in the Luminous Marine Life series can also fluorescent green all over. To do so, the swell shark converts incoming ultraviolet light, or blue light, into green light. A special pigment in the sharks’ eyes enables it to see the neon green of its conspecifics. Human eyes do not have that pigment, which is why we need an ultraviolet torch to see the swell shark’s green glow. The molecules that make swell sharks fluoresce are unique in the animal world. The light areas of their skin glow more intensely than the dark ones. Why the shark does that is not yet fully understood, but it is assumed that the process helps swell sharks to recognise each other and to distinguish between the males and females of the species. It could also be a form of camouflage and because the molecules offer protection against bacteria and algae and just happen to glow. Although the swell shark is not targeted for fishing, humans are its main predator as the sharks still end up as bycatch in lobster and crab traps as well as in bottom trawls. This is a problem because swell sharks reproduce slowly and have few young. Global warming and overfishing are further challenges, as the swell shark prefers temperate water temperatures and industrial fishing reduces the shark’s feeding opportunities. The swell shark is just one of 12 fascinating examples in the Luminous Marine Life series of why we absolutely have to protect the marine habitat – not least from ourselves. A wide band, reminiscent of an old-fashioned porthole frames the aquatic scene on the coin’s reverse. A swell shark appears to swim through the porthole, its body brown in colour when illuminated with ultraviolet light glows green. As on all coins in the series, to the left and below a shell and a starfish can be seen. An official Austrian Mint 3 euro coin, this cupro-nickel features the Swell Shark in glorious full colour - and, better yet, if you shine a UV light on it, the blue rings glow just as in nature! The coin features all 12 of the extreme luminous marine life creatures in the series in silhouette on its obverse, while a color-printed Swell Shark is shown on the coin’s glow-in-the-dark reverse.
Price: 19.95 USD
Location: Salt Lake City, Utah
End Time: 2024-11-04T16:03:42.000Z
Shipping Cost: 2.95 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Circulated/Uncirculated: Uncirculated
Denomination: 3 Euro
Composition: Cupro-nickel
Year: 2023
Grade: Ungraded
Country/Region of Manufacture: Austria
Certification: Uncertified
Modified Item: No
