PAMP Switzerland

Silver

Solomon Islands HAMMERHEAD SHARK series HUNTERS OF THE DEEP $2 Silver Coin 2019 Shark shaped Proof 1 oz

Solomon Islands HAMMERHEAD SHARK series HUNTERS OF THE DEEP $2 Silver Coin 2019 Shark shaped Proof 1 oz

$177.39 Old Price: $272.90

Notes: FREE INTERNATIONAL SHIPPING

Mint: PAMP Switzerland
Product Code: PP-S-SH-19-02
Availability: IN STOCK

Name of series
Fishes	> CLICK TO VIEW
Unique Shapes	> Click to view
Specifications
Metal	Silver
Mintage	2500
Fineness (% purity)	99.99%
Content (Troy OZ)	1
Denomination (SBD)	$2
Weight (g)	31.10
Size (mm)	78 x 33
Year of Issue	2019
Country	Solomon Islands
Edge	Smooth
Quality	Proof
Decoration	Shark shaped; Serial number
Package	Album-folder with interesting facts
Certificate of Authenticity	Yes

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The known species range from 0.9 to 6.0 m (3.0 to 19.7 ft) in length and weigh from 3 to 580 kg (6.6 to 1,278.7 lb).They are usually light gray and have a greenish tint. Their bellies are white, which allows them to blend into the ocean when viewed from the bottom and sneak up on their prey. Their heads have lateral projections which give them a hammer-like shape. Hammerheads have disproportionately small mouths compared to other shark species. They are also known to form schools during the day, sometimes in groups over 100. In the evening, like other sharks, they become solitary hunters. National Geographic explains that hammerheads can be found in warm tropical waters, but during the summer, they participate in a mass migration to search for cooler waters.

A theory has been advanced that the hammer-like shape of the head may have evolved at least in part to enhance the animal's vision. The positioning of the eyes, mounted on the sides of the shark's distinctive hammer head, allows 360° of vision in the vertical plane, meaning the animals can see above and below them at all times. The shape of the head was previously thought to help the shark find food, aiding in close-quarters maneuverability, and allowing sharp turning movement without losing stability. However, the unusual structure of its vertebrae has been found to be instrumental in making the turns correctly, more often than the shape of its head, though it would also shift and provide lift. From what is known about the winghead shark, the shape of the hammerhead apparently has to do with an evolved sensory function. Like all sharks, hammerheads have electroreceptory sensory pores called ampullae of Lorenzini. The pores on the shark's head lead to sensory tubes, which detect electricity given off by other living creatures.By distributing the receptors over a wider area, like a larger radio antenna, hammerheads can sweep for prey more effectively.

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• High international collectible demand

• Appreciated in an investing in world collectible modern low mintage coins

• Beautiful coin to your loved one for any occasions or a great business gift

所罗门群岛HAMMERHEAD SHARK系列深造者$ 2银币2019鲨鱼形精制1盎司